12997593432 has 24 divisors (see below), whose sum is σ = 35201815740. Its totient is φ = 4332531120.

The previous prime is 12997593403. The next prime is 12997593437. The reversal of 12997593432 is 23439579921.

12997593432 is a `hidden beast` number, since 1 + 2 + 9 + 9 + 7 + 593 + 43 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12997593437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90260994 + ... + 90261137.

Almost surely, 2^12997593432 is an apocalyptic number.

12997593432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12997593432 is an abundant number, since it is smaller than the sum of its proper divisors (22204222308).

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

12997593432 is a wasteful number, since it uses less digits than its factorization.

12997593432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180522143 (or 180522136 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The spelling of 12997593432 in words is "twelve billion, nine hundred ninety-seven million, five hundred ninety-three thousand, four hundred thirty-two".