11572775764 has 48 divisors (see below), whose sum is σ = 22297968000. Its totient is φ = 5211849600.

The previous prime is 11572775761. The next prime is 11572775777. The reversal of 11572775764 is 46757727511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11572775761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2876074 + ... + 2880094.

It is an arithmetic number, because the mean of its divisors is an integer number (464541000).

Almost surely, 2^11572775764 is an apocalyptic number.

It is an amenable number.

11572775764 is a deficient number, since it is larger than the sum of its proper divisors (10725192236).

11572775764 is a wasteful number, since it uses less digits than its factorization.

11572775764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624 (or 4622 counting only the distinct ones).

The product of its digits is 2881200, while the sum is 52.

The spelling of 11572775764 in words is "eleven billion, five hundred seventy-two million, seven hundred seventy-five thousand, seven hundred sixty-four".