12085575432 has 64 divisors (see below), whose sum is σ = 35644108800. Its totient is φ = 3341632320.

The previous prime is 12085575427. The next prime is 12085575443. The reversal of 12085575432 is 23457558021.

It is a super-2 number, since 2×12085575432² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1155082 + ... + 1165497.

It is an arithmetic number, because the mean of its divisors is an integer number (556939200).

Almost surely, 2^12085575432 is an apocalyptic number.

12085575432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12085575432 is an abundant number, since it is smaller than the sum of its proper divisors (23558533368).

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

12085575432 is a wasteful number, since it uses less digits than its factorization.

12085575432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320626 (or 2320622 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 42.

The spelling of 12085575432 in words is "twelve billion, eighty-five million, five hundred seventy-five thousand, four hundred thirty-two".