768868779392 has 64 divisors (see below), whose sum is σ = 1759346592000. Its totient is φ = 327859259904.

The previous prime is 768868779383. The next prime is 768868779463. The reversal of 768868779392 is 293977868867.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1977758 + ... + 2334365.

It is an arithmetic number, because the mean of its divisors is an integer number (27489790500).

Almost surely, 2^768868779392 is an apocalyptic number.

It is an amenable number.

768868779392 is an abundant number, since it is smaller than the sum of its proper divisors (990477812608).

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

768868779392 is a wasteful number, since it uses less digits than its factorization.

768868779392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312343 (or 4312331 counting only the distinct ones).

The product of its digits is 3072577536, while the sum is 80.

The spelling of 768868779392 in words is "seven hundred sixty-eight billion, eight hundred sixty-eight million, seven hundred seventy-nine thousand, three hundred ninety-two".