768397912878 has 16 divisors (see below), whose sum is σ = 1536804415440. Its totient is φ = 256131206016.

The previous prime is 768397912819. The next prime is 768397912897. The reversal of 768397912878 is 878219793867.

768397912878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 1933926 + ... + 2297142.

It is an arithmetic number, because the mean of its divisors is an integer number (96050275965).

Almost surely, 2^768397912878 is an apocalyptic number.

768397912878 is an abundant number, since it is smaller than the sum of its proper divisors (768406502562).

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

768397912878 is a wasteful number, since it uses less digits than its factorization.

768397912878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715811.

The product of its digits is 512096256, while the sum is 75.

The spelling of 768397912878 in words is "seven hundred sixty-eight billion, three hundred ninety-seven million, nine hundred twelve thousand, eight hundred seventy-eight".