78777100384 has 12 divisors (see below), whose sum is σ = 155092416444. Its totient is φ = 39388550176.

The previous prime is 78777100379. The next prime is 78777100417. The reversal of 78777100384 is 48300177787.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1230892162 + ... + 1230892225.

It is an arithmetic number, because the mean of its divisors is an integer number (12924368037).

Almost surely, 2^78777100384 is an apocalyptic number.

It is an amenable number.

78777100384 is a deficient number, since it is larger than the sum of its proper divisors (76315316060).

78777100384 is a wasteful number, since it uses less digits than its factorization.

78777100384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461784397 (or 2461784389 counting only the distinct ones).

The product of its (nonzero) digits is 1843968, while the sum is 52.

The spelling of 78777100384 in words is "seventy-eight billion, seven hundred seventy-seven million, one hundred thousand, three hundred eighty-four".