68875765056 has 168 divisors, whose sum is σ = 226149594944. Its totient is φ = 19632844800.

The previous prime is 68875765051. The next prime is 68875765099. The reversal of 68875765056 is 65056757886.

It is a happy number.

68875765056 is a `hidden beast` number, since 6 + 8 + 8 + 7 + 576 + 5 + 0 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 68875764984 and 68875765002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68875765051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1726131 + ... + 1765581.

Almost surely, 2^68875765056 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 68875765056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113074797472).

68875765056 is an abundant number, since it is smaller than the sum of its proper divisors (157273829888).

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

68875765056 is a wasteful number, since it uses less digits than its factorization.

68875765056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39909 (or 39896 counting only the distinct ones).

The product of its (nonzero) digits is 84672000, while the sum is 63.

The spelling of 68875765056 in words is "sixty-eight billion, eight hundred seventy-five million, seven hundred sixty-five thousand, fifty-six".