68125864188 has 12 divisors (see below), whose sum is σ = 158960349800. Its totient is φ = 22708621392.

The previous prime is 68125864187. The next prime is 68125864229. The reversal of 68125864188 is 88146852186.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×68125864188² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68125864187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2838577663 + ... + 2838577686.

Almost surely, 2^68125864188 is an apocalyptic number.

It is an amenable number.

68125864188 is an abundant number, since it is smaller than the sum of its proper divisors (90834485612).

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

68125864188 is a wasteful number, since it uses less digits than its factorization.

68125864188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5677155356 (or 5677155354 counting only the distinct ones).

The product of its digits is 5898240, while the sum is 57.

The spelling of 68125864188 in words is "sixty-eight billion, one hundred twenty-five million, eight hundred sixty-four thousand, one hundred eighty-eight".