78622520624 has 20 divisors (see below), whose sum is σ = 152336626320. Its totient is φ = 39309842880.

The previous prime is 78622520597. The next prime is 78622520651. The reversal of 78622520624 is 42602522687.

It is an interprime number because it is at equal distance from previous prime (78622520597) and next prime (78622520651).

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479357 + ... + 622115.

It is an arithmetic number, because the mean of its divisors is an integer number (7616831316).

Almost surely, 2^78622520624 is an apocalyptic number.

It is an amenable number.

78622520624 is a deficient number, since it is larger than the sum of its proper divisors (73714105696).

78622520624 is a wasteful number, since it uses less digits than its factorization.

78622520624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177188 (or 177182 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 78622520624 in words is "seventy-eight billion, six hundred twenty-two million, five hundred twenty thousand, six hundred twenty-four".