12621507532 has 12 divisors (see below), whose sum is σ = 22100038576. Its totient is φ = 6307210800.

The previous prime is 12621507529. The next prime is 12621507551. The reversal of 12621507532 is 23570512621.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877719 + ... + 891982.

Almost surely, 2^12621507532 is an apocalyptic number.

It is an amenable number.

12621507532 is a deficient number, since it is larger than the sum of its proper divisors (9478531044).

12621507532 is a wasteful number, since it uses less digits than its factorization.

12621507532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771488 (or 1771486 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 12621507532 in words is "twelve billion, six hundred twenty-one million, five hundred seven thousand, five hundred thirty-two".