11899475432 has 16 divisors (see below), whose sum is σ = 24027787140. Its totient is φ = 5492065536.

The previous prime is 11899475377. The next prime is 11899475453. The reversal of 11899475432 is 23457499811.

It can be written as a sum of positive squares in 2 ways, for example, as 11888413156 + 11062276 = 109034^2 + 3326^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57208913 + ... + 57209120.

Almost surely, 2^11899475432 is an apocalyptic number.

It is an amenable number.

11899475432 is an abundant number, since it is smaller than the sum of its proper divisors (12128311708).

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

11899475432 is a wasteful number, since it uses less digits than its factorization.

11899475432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114418052 (or 114418048 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The spelling of 11899475432 in words is "eleven billion, eight hundred ninety-nine million, four hundred seventy-five thousand, four hundred thirty-two".