12537471732 has 24 divisors (see below), whose sum is σ = 30197782272. Its totient is φ = 4044345600.

The previous prime is 12537471677. The next prime is 12537471733. The reversal of 12537471732 is 23717473521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12537471733) 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, 16851069 + ... + 16851812.

It is an arithmetic number, because the mean of its divisors is an integer number (1258240928).

Almost surely, 2^12537471732 is an apocalyptic number.

12537471732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12537471732 is an abundant number, since it is smaller than the sum of its proper divisors (17660310540).

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

12537471732 is a wasteful number, since it uses less digits than its factorization.

12537471732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33702919 (or 33702917 counting only the distinct ones).

The product of its digits is 246960, while the sum is 42.

The spelling of 12537471732 in words is "twelve billion, five hundred thirty-seven million, four hundred seventy-one thousand, seven hundred thirty-two".