68785066256 has 40 divisors (see below), whose sum is σ = 144112919040. Its totient is φ = 31680725504.

The previous prime is 68785066249. The next prime is 68785066277. The reversal of 68785066256 is 65266058786.

It is a junction number, because it is equal to n+sod(n) for n = 68785066195 and 68785066204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2677496 + ... + 2703063.

It is an arithmetic number, because the mean of its divisors is an integer number (3602822976).

Almost surely, 2^68785066256 is an apocalyptic number.

It is an amenable number.

68785066256 is an abundant number, since it is smaller than the sum of its proper divisors (75327852784).

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

68785066256 is a wasteful number, since it uses less digits than its factorization.

68785066256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5380631 (or 5380625 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 59.

The spelling of 68785066256 in words is "sixty-eight billion, seven hundred eighty-five million, sixty-six thousand, two hundred fifty-six".