11581074957 has 16 divisors (see below), whose sum is σ = 15601952448. Its totient is φ = 7640666880.

The previous prime is 11581074949. The next prime is 11581074971. The reversal of 11581074957 is 75947018511.

It is not a de Polignac number, because 11581074957 - 2³ = 11581074949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11581074157) 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, 198238 + ... + 249920.

It is an arithmetic number, because the mean of its divisors is an integer number (975122028).

Almost surely, 2^11581074957 is an apocalyptic number.

It is an amenable number.

11581074957 is a deficient number, since it is larger than the sum of its proper divisors (4020877491).

11581074957 is a wasteful number, since it uses less digits than its factorization.

11581074957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52460.

The product of its (nonzero) digits is 352800, while the sum is 48.

The spelling of 11581074957 in words is "eleven billion, five hundred eighty-one million, seventy-four thousand, nine hundred fifty-seven".