78976182816 has 48 divisors (see below), whose sum is σ = 230347202400. Its totient is φ = 26325393984.

The previous prime is 78976182811. The next prime is 78976182877. The reversal of 78976182816 is 61828167987.

78976182816 is a `hidden beast` number, since 7 + 8 + 9 + 7 + 618 + 2 + 8 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (78976182811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45702946 + ... + 45704673.

It is an arithmetic number, because the mean of its divisors is an integer number (4798900050).

Almost surely, 2^78976182816 is an apocalyptic number.

It is an amenable number.

78976182816 is an abundant number, since it is smaller than the sum of its proper divisors (151371019584).

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

78976182816 is a wasteful number, since it uses less digits than its factorization.

78976182816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91407638 (or 91407624 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 63.

The spelling of 78976182816 in words is "seventy-eight billion, nine hundred seventy-six million, one hundred eighty-two thousand, eight hundred sixteen".