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68967878000 = 24537171811601
BaseRepresentation
bin100000000111011001…
…1100100110101110000
320121000111020012122212
41000032303210311300
52112221234044000
651403340551252
74661042201420
oct1001663446560
9217014205585
1068967878000
112728162958a
1211449252528
136671671688
1434a3906480
151bd9bd6c35
hex100ece4d70

68967878000 has 320 divisors, whose sum is σ = 203040504576. Its totient is φ = 22118400000.

The previous prime is 68967877999. The next prime is 68967878003. The reversal of 68967878000 is 87876986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68967878003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43077200 + ... + 43078800.

Almost surely, 268967878000 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 68967878000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101520252288).

68967878000 is an abundant number, since it is smaller than the sum of its proper divisors (134072626576).

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

68967878000 is a wasteful number, since it uses less digits than its factorization.

68967878000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1813 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 59.

The spelling of 68967878000 in words is "sixty-eight billion, nine hundred sixty-seven million, eight hundred seventy-eight thousand".