12638762522 has 16 divisors (see below), whose sum is σ = 19795612032. Its totient is φ = 6040591920.

The previous prime is 12638762497. The next prime is 12638762561. The reversal of 12638762522 is 22526783621.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21413 + ... + 160424.

It is an arithmetic number, because the mean of its divisors is an integer number (1237225752).

Almost surely, 2^12638762522 is an apocalyptic number.

12638762522 is a deficient number, since it is larger than the sum of its proper divisors (7156849510).

12638762522 is a wasteful number, since it uses less digits than its factorization.

12638762522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183373.

The product of its digits is 483840, while the sum is 44.

The spelling of 12638762522 in words is "twelve billion, six hundred thirty-eight million, seven hundred sixty-two thousand, five hundred twenty-two".