12532537402172 has 6 divisors (see below), whose sum is σ = 21931940453808. Its totient is φ = 6266268701084.

The previous prime is 12532537402157. The next prime is 12532537402241. The reversal of 12532537402172 is 27120473523521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1566567175268 + ... + 1566567175275.

It is an arithmetic number, because the mean of its divisors is an integer number (3655323408968).

Almost surely, 2^{12532537402172} is an apocalyptic number.

It is an amenable number.

12532537402172 is a deficient number, since it is larger than the sum of its proper divisors (9399403051636).

12532537402172 is a wasteful number, since it uses less digits than its factorization.

12532537402172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133134350547 (or 3133134350545 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 12532537402172 in words is "twelve trillion, five hundred thirty-two billion, five hundred thirty-seven million, four hundred two thousand, one hundred seventy-two".