87965815792 has 40 divisors (see below), whose sum is σ = 173145784032. Its totient is φ = 43285267200.

The previous prime is 87965815759. The next prime is 87965815799. The reversal of 87965815792 is 29751856978.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87965815799) 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, 563242 + ... + 702262.

Almost surely, 2^87965815792 is an apocalyptic number.

It is an amenable number.

87965815792 is a deficient number, since it is larger than the sum of its proper divisors (85179968240).

87965815792 is a wasteful number, since it uses less digits than its factorization.

87965815792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139657 (or 139651 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 67.

The spelling of 87965815792 in words is "eighty-seven billion, nine hundred sixty-five million, eight hundred fifteen thousand, seven hundred ninety-two".