11915464172 has 24 divisors (see below), whose sum is σ = 21584747520. Its totient is φ = 5749465680.

The previous prime is 11915464159. The next prime is 11915464199. The reversal of 11915464172 is 27146451911.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89318 + ... + 178349.

It is an arithmetic number, because the mean of its divisors is an integer number (899364480).

Almost surely, 2^11915464172 is an apocalyptic number.

It is an amenable number.

11915464172 is a deficient number, since it is larger than the sum of its proper divisors (9669283348).

11915464172 is a wasteful number, since it uses less digits than its factorization.

11915464172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268061 (or 268059 counting only the distinct ones).

The product of its digits is 60480, while the sum is 41.

The spelling of 11915464172 in words is "eleven billion, nine hundred fifteen million, four hundred sixty-four thousand, one hundred seventy-two".