12638912504 has 32 divisors (see below), whose sum is σ = 24612422400. Its totient is φ = 6080158560.

The previous prime is 12638912467. The next prime is 12638912509. The reversal of 12638912504 is 40521983621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12638912509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262682 + ... + 307049.

It is an arithmetic number, because the mean of its divisors is an integer number (769138200).

Almost surely, 2^12638912504 is an apocalyptic number.

It is an amenable number.

12638912504 is a deficient number, since it is larger than the sum of its proper divisors (11973509896).

12638912504 is a wasteful number, since it uses less digits than its factorization.

12638912504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569843 (or 569839 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 12638912504 in words is "twelve billion, six hundred thirty-eight million, nine hundred twelve thousand, five hundred four".