12502637648 has 20 divisors (see below), whose sum is σ = 24565043808. Its totient is φ = 6163271520.

The previous prime is 12502637647. The next prime is 12502637663. The reversal of 12502637648 is 84673620521.

It is a junction number, because it is equal to n+sod(n) for n = 12502637599 and 12502637608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12502637647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5501786 + ... + 5504057.

Almost surely, 2^12502637648 is an apocalyptic number.

It is an amenable number.

12502637648 is a deficient number, since it is larger than the sum of its proper divisors (12062406160).

12502637648 is a wasteful number, since it uses less digits than its factorization.

12502637648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11005922 (or 11005916 counting only the distinct ones).

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

The spelling of 12502637648 in words is "twelve billion, five hundred two million, six hundred thirty-seven thousand, six hundred forty-eight".