12901685624 has 32 divisors (see below), whose sum is σ = 24689059200. Its totient is φ = 6319014240.

The previous prime is 12901685591. The next prime is 12901685627. The reversal of 12901685624 is 42658610921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12901685627) 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, 28709 + ... + 163179.

It is an arithmetic number, because the mean of its divisors is an integer number (771533100).

Almost surely, 2^12901685624 is an apocalyptic number.

It is an amenable number.

12901685624 is a deficient number, since it is larger than the sum of its proper divisors (11787373576).

12901685624 is a wasteful number, since it uses less digits than its factorization.

12901685624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134723 (or 134719 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 12901685624 in words is "twelve billion, nine hundred one million, six hundred eighty-five thousand, six hundred twenty-four".