12365715432 has 128 divisors (see below), whose sum is σ = 37228262400. Its totient is φ = 3343680000.

The previous prime is 12365715421. The next prime is 12365715437. The reversal of 12365715432 is 23451756321.

It is not an unprimeable number, because it can be changed into a prime (12365715437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5492307 + ... + 5494557.

It is an arithmetic number, because the mean of its divisors is an integer number (290845800).

Almost surely, 2^12365715432 is an apocalyptic number.

12365715432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12365715432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18614131200).

12365715432 is an abundant number, since it is smaller than the sum of its proper divisors (24862546968).

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

12365715432 is a wasteful number, since it uses less digits than its factorization.

12365715432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007 (or 4003 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The spelling of 12365715432 in words is "twelve billion, three hundred sixty-five million, seven hundred fifteen thousand, four hundred thirty-two".