78492012608 has 28 divisors (see below), whose sum is σ = 156219819132. Its totient is φ = 39129538560.

The previous prime is 78492012593. The next prime is 78492012661. The reversal of 78492012608 is 80621029487.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39859323904 + 38632688704 = 199648^2 + 196552^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 1798073 + ... + 1841208.

Almost surely, 2^78492012608 is an apocalyptic number.

It is an amenable number.

78492012608 is a deficient number, since it is larger than the sum of its proper divisors (77727806524).

78492012608 is a wasteful number, since it uses less digits than its factorization.

78492012608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639630 (or 3639620 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 78492012608 in words is "seventy-eight billion, four hundred ninety-two million, twelve thousand, six hundred eight".