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68864488446797 = 2331677247357689
BaseRepresentation
bin11111010100001110000110…
…10111110001101101001101
3100000211101021121022012001122
433222013003113301231031
533011233433020244142
6402243524222050325
720335203135466301
oct1752070327615515
9300741247265048
1068864488446797
111aa402a148665a
127882495a199a5
132c56b7ca39174
1413010b7d6dd01
157e64cb6181d2
hex3ea1c35f1b4d

68864488446797 has 32 divisors (see below), whose sum is σ = 74317509642240. Its totient is φ = 63624529013760.

The previous prime is 68864488446781. The next prime is 68864488446827. The reversal of 68864488446797 is 79764488446886.

It is a cyclic number.

It is not a de Polignac number, because 68864488446797 - 24 = 68864488446781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68864488446757) 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, 1193690729 + ... + 1193748417.

It is an arithmetic number, because the mean of its divisors is an integer number (2322422176320).

Almost surely, 268864488446797 is an apocalyptic number.

It is an amenable number.

68864488446797 is a deficient number, since it is larger than the sum of its proper divisors (5453021195443).

68864488446797 is a wasteful number, since it uses less digits than its factorization.

68864488446797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60893.

The product of its digits is 99883155456, while the sum is 89.

Adding to 68864488446797 its sum of digits (89), we get a palindrome (68864488446886).

The spelling of 68864488446797 in words is "sixty-eight trillion, eight hundred sixty-four billion, four hundred eighty-eight million, four hundred forty-six thousand, seven hundred ninety-seven".

Divisors: 1 23 31 677 713 2473 15571 20987 56879 57689 76663 482701 1326847 1674221 1763249 1788359 38507083 39055453 41132257 51900851 142664897 898275419 1193719573 1210719043 3281292631 4422611807 27846537989 96584135269 101720071561 2221435111187 2994108193339 68864488446797