12505739037 has 16 divisors (see below), whose sum is σ = 18200805888. Its totient is φ = 7574802480.

The previous prime is 12505739033. The next prime is 12505739069. The reversal of 12505739037 is 73093750521.

It is not a de Polignac number, because 12505739037 - 2² = 12505739033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12505739037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12505739033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53113 + ... + 166830.

It is an arithmetic number, because the mean of its divisors is an integer number (1137550368).

Almost surely, 2^12505739037 is an apocalyptic number.

It is an amenable number.

12505739037 is a deficient number, since it is larger than the sum of its proper divisors (5695066851).

12505739037 is a wasteful number, since it uses less digits than its factorization.

12505739037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221680.

The product of its (nonzero) digits is 198450, while the sum is 42.

The spelling of 12505739037 in words is "twelve billion, five hundred five million, seven hundred thirty-nine thousand, thirty-seven".