11989593008 has 40 divisors (see below), whose sum is σ = 23692778208. Its totient is φ = 5875564032.

The previous prime is 11989592957. The next prime is 11989593023. The reversal of 11989593008 is 80039598911.

It is a Cunningham number, because it is equal to 109497²-1.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869141 + ... + 882827.

Almost surely, 2^11989593008 is an apocalyptic number.

It is an amenable number.

11989593008 is a deficient number, since it is larger than the sum of its proper divisors (11703185200).

11989593008 is a wasteful number, since it uses less digits than its factorization.

11989593008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14781 (or 14775 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 53.

The spelling of 11989593008 in words is "eleven billion, nine hundred eighty-nine million, five hundred ninety-three thousand, eight".