11989592008 has 16 divisors (see below), whose sum is σ = 22485991500. Its totient is φ = 5993327616.

The previous prime is 11989591997. The next prime is 11989592009. The reversal of 11989592008 is 80029598911.

It can be written as a sum of positive squares in 2 ways, for example, as 11737988964 + 251603044 = 108342^2 + 15862^2 .

It is not an unprimeable number, because it can be changed into a prime (11989592009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148453 + ... + 214516.

Almost surely, 2^11989592008 is an apocalyptic number.

It is an amenable number.

11989592008 is a deficient number, since it is larger than the sum of its proper divisors (10496399492).

11989592008 is a wasteful number, since it uses less digits than its factorization.

11989592008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367104 (or 367100 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 52.

The spelling of 11989592008 in words is "eleven billion, nine hundred eighty-nine million, five hundred ninety-two thousand, eight".