12537017700 has 72 divisors (see below), whose sum is σ = 36285365088. Its totient is φ = 3342136320.

The previous prime is 12537017683. The next prime is 12537017707. The reversal of 12537017700 is 771073521.

It is a super-2 number, since 2×12537017700² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12537017707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1496724 + ... + 1505076.

It is an arithmetic number, because the mean of its divisors is an integer number (503963404).

Almost surely, 2^12537017700 is an apocalyptic number.

12537017700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12537017700 is an abundant number, since it is smaller than the sum of its proper divisors (23748347388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12537017700 is a wasteful number, since it uses less digits than its factorization.

12537017700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13373 (or 13366 counting only the distinct ones).

The product of its (nonzero) digits is 10290, while the sum is 33.

The spelling of 12537017700 in words is "twelve billion, five hundred thirty-seven million, seventeen thousand, seven hundred".