78500696533 has 24 divisors (see below), whose sum is σ = 94873023360. Its totient is φ = 63618648480.

The previous prime is 78500696513. The next prime is 78500696543. The reversal of 78500696533 is 33569600587.

It is not a de Polignac number, because 78500696533 - 2²⁵ = 78467142101 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78500696513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1255728 + ... + 1316758.

It is an arithmetic number, because the mean of its divisors is an integer number (3953042640).

Almost surely, 2^78500696533 is an apocalyptic number.

It is an amenable number.

78500696533 is a deficient number, since it is larger than the sum of its proper divisors (16372326827).

78500696533 is a wasteful number, since it uses less digits than its factorization.

78500696533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61585 (or 61566 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 52.

The spelling of 78500696533 in words is "seventy-eight billion, five hundred million, six hundred ninety-six thousand, five hundred thirty-three".