68769877264 has 20 divisors (see below), whose sum is σ = 145354513680. Its totient is φ = 31259035040.

The previous prime is 68769877243. The next prime is 68769877271. The reversal of 68769877264 is 46277896786.

It is a junction number, because it is equal to n+sod(n) for n = 68769877193 and 68769877202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195368794 + ... + 195369145.

It is an arithmetic number, because the mean of its divisors is an integer number (7267725684).

Almost surely, 2^68769877264 is an apocalyptic number.

It is an amenable number.

68769877264 is an abundant number, since it is smaller than the sum of its proper divisors (76584636416).

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

68769877264 is a wasteful number, since it uses less digits than its factorization.

68769877264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390737958 (or 390737952 counting only the distinct ones).

The product of its digits is 341397504, while the sum is 70.

The spelling of 68769877264 in words is "sixty-eight billion, seven hundred sixty-nine million, eight hundred seventy-seven thousand, two hundred sixty-four".