11577572644 has 12 divisors (see below), whose sum is σ = 22102638768. Its totient is φ = 5262533000.

The previous prime is 11577572621. The next prime is 11577572659. The reversal of 11577572644 is 44627577511.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131563282 + ... + 131563369.

It is an arithmetic number, because the mean of its divisors is an integer number (1841886564).

Almost surely, 2^11577572644 is an apocalyptic number.

It is an amenable number.

11577572644 is a deficient number, since it is larger than the sum of its proper divisors (10525066124).

11577572644 is a wasteful number, since it uses less digits than its factorization.

11577572644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263126666 (or 263126664 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 49.

The spelling of 11577572644 in words is "eleven billion, five hundred seventy-seven million, five hundred seventy-two thousand, six hundred forty-four".