11915579672 has 32 divisors (see below), whose sum is σ = 22977464400. Its totient is φ = 5789664384.

The previous prime is 11915579657. The next prime is 11915579677. The reversal of 11915579672 is 27697551911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11915579677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20147 + ... + 155682.

Almost surely, 2^11915579672 is an apocalyptic number.

It is an amenable number.

11915579672 is a deficient number, since it is larger than the sum of its proper divisors (11061884728).

11915579672 is a wasteful number, since it uses less digits than its factorization.

11915579672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176075 (or 176071 counting only the distinct ones).

The product of its digits is 1190700, while the sum is 53.

The spelling of 11915579672 in words is "eleven billion, nine hundred fifteen million, five hundred seventy-nine thousand, six hundred seventy-two".