11539370975 has 24 divisors (see below), whose sum is σ = 15823479792. Its totient is φ = 8277292800.

The previous prime is 11539370933. The next prime is 11539370977. The reversal of 11539370975 is 57907393511.

It is a de Polignac number, because none of the positive numbers 2^k-11539370975 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11539370977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267332 + ... + 307481.

It is an arithmetic number, because the mean of its divisors is an integer number (659311658).

Almost surely, 2^11539370975 is an apocalyptic number.

11539370975 is a deficient number, since it is larger than the sum of its proper divisors (4284108817).

11539370975 is a wasteful number, since it uses less digits than its factorization.

11539370975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574907 (or 574902 counting only the distinct ones).

The product of its (nonzero) digits is 893025, while the sum is 50.

The spelling of 11539370975 in words is "eleven billion, five hundred thirty-nine million, three hundred seventy thousand, nine hundred seventy-five".