12631525884 has 66 divisors (see below), whose sum is σ = 33158188280. Its totient is φ = 4210429896.

The previous prime is 12631525859. The next prime is 12631525891. The reversal of 12631525884 is 48852513621.

12631525884 is a `hidden beast` number, since 1 + 2 + 6 + 315 + 258 + 84 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 21 ways as a sum of consecutive naturals, for example, 209457 + ... + 262935.

Almost surely, 2^12631525884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12631525884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16579094140).

12631525884 is an abundant number, since it is smaller than the sum of its proper divisors (20526662396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12631525884 is an frugal number, since it uses more digits than its factorization.

12631525884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53513 (or 53484 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The spelling of 12631525884 in words is "twelve billion, six hundred thirty-one million, five hundred twenty-five thousand, eight hundred eighty-four".