63172356375 has 32 divisors (see below), whose sum is σ = 106159644864. Its totient is φ = 33358320000.

The previous prime is 63172356343. The next prime is 63172356389. The reversal of 63172356375 is 57365327136.

It is not a de Polignac number, because 63172356375 - 2⁵ = 63172356343 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 796084 + ... + 871833.

It is an arithmetic number, because the mean of its divisors is an integer number (3317488902).

Almost surely, 2^63172356375 is an apocalyptic number.

63172356375 is a deficient number, since it is larger than the sum of its proper divisors (42987288489).

63172356375 is a wasteful number, since it uses less digits than its factorization.

63172356375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668036 (or 1668026 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 48.

The spelling of 63172356375 in words is "sixty-three billion, one hundred seventy-two million, three hundred fifty-six thousand, three hundred seventy-five".