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68026374936 = 23331343355949
BaseRepresentation
bin111111010110101100…
…000001101100011000
320111120212121220021000
4333112230001230120
52103304222444221
651130105145000
74625520434502
oct772654015430
9214525556230
1068026374936
112693912a383
1211225a8b160
1365515a6280
143414864d72
151b8220ce26
hexfd6b01b18

68026374936 has 128 divisors (see below), whose sum is σ = 203971320000. Its totient is φ = 20882479104.

The previous prime is 68026374931. The next prime is 68026374961. The reversal of 68026374936 is 63947362086.

68026374936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68026374931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1187890 + ... + 1243838.

Almost surely, 268026374936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68026374936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101985660000).

68026374936 is an abundant number, since it is smaller than the sum of its proper divisors (135944945064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68026374936 is a wasteful number, since it uses less digits than its factorization.

68026374936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56410 (or 56400 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 68026374936 in words is "sixty-eight billion, twenty-six million, three hundred seventy-four thousand, nine hundred thirty-six".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 104 108 117 156 216 234 312 351 433 468 702 866 936 1299 1404 1732 2598 2808 3464 3897 5196 5629 7794 10392 11258 11691 15588 16887 22516 23382 31176 33774 45032 46764 50661 55949 67548 93528 101322 111898 135096 151983 167847 202644 223796 303966 335694 405288 447592 503541 607932 671388 727337 1007082 1215864 1342776 1454674 1510623 2014164 2182011 2909348 3021246 4028328 4364022 5818696 6042492 6546033 8728044 12084984 13092066 17456088 19638099 24225917 26184132 39276198 48451834 52368264 72677751 78552396 96903668 145355502 157104792 193807336 218033253 290711004 314936921 436066506 581422008 629873842 654099759 872133012 944810763 1259747684 1308199518 1744266024 1889621526 2519495368 2616399036 2834432289 3779243052 5232798072 5668864578 7558486104 8503296867 11337729156 17006593734 22675458312 34013187468 68026374936