11543640676 has 6 divisors (see below), whose sum is σ = 20201371190. Its totient is φ = 5771820336.

The previous prime is 11543640649. The next prime is 11543640701. The reversal of 11543640676 is 67604634511.

It can be written as a sum of positive squares in only one way, i.e., 11539915776 + 3724900 = 107424^2 + 1930^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1442955081 + ... + 1442955088.

Almost surely, 2^11543640676 is an apocalyptic number.

It is an amenable number.

11543640676 is a deficient number, since it is larger than the sum of its proper divisors (8657730514).

11543640676 is a wasteful number, since it uses less digits than its factorization.

11543640676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885910173 (or 2885910171 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 11543640676 in words is "eleven billion, five hundred forty-three million, six hundred forty thousand, six hundred seventy-six".