63131256875 has 20 divisors (see below), whose sum is σ = 78934601592. Its totient is φ = 50475696000.

The previous prime is 63131256787. The next prime is 63131256883. The reversal of 63131256875 is 57865213136.

63131256875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63131256875 - 2¹⁰ = 63131255851 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1082204 + ... + 1139046.

Almost surely, 2^63131256875 is an apocalyptic number.

63131256875 is a deficient number, since it is larger than the sum of its proper divisors (15803344717).

63131256875 is an equidigital number, since it uses as much as digits as its factorization.

63131256875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58640 (or 58625 counting only the distinct ones).

The product of its digits is 907200, while the sum is 47.

The spelling of 63131256875 in words is "sixty-three billion, one hundred thirty-one million, two hundred fifty-six thousand, eight hundred seventy-five".