68756250681 has 20 divisors (see below), whose sum is σ = 102733408272. Its totient is φ = 45827033688.

The previous prime is 68756250671. The next prime is 68756250683. The reversal of 68756250681 is 18605265786.

68756250681 is a `hidden beast` number, since 6 + 8 + 7 + 5 + 625 + 0 + 6 + 8 + 1 = 666.

It is not a de Polignac number, because 68756250681 - 2⁵ = 68756250649 is a prime.

It is a super-2 number, since 2×68756250681² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (68756250683) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 268450 + ... + 457796.

Almost surely, 2^68756250681 is an apocalyptic number.

It is an amenable number.

68756250681 is a deficient number, since it is larger than the sum of its proper divisors (33977157591).

68756250681 is a wasteful number, since it uses less digits than its factorization.

68756250681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193842 (or 193833 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 68756250681 in words is "sixty-eight billion, seven hundred fifty-six million, two hundred fifty thousand, six hundred eighty-one".