11239539157 has 16 divisors (see below), whose sum is σ = 14311084032. Its totient is φ = 8571737520.

The previous prime is 11239539139. The next prime is 11239539169. The reversal of 11239539157 is 75193593211.

It is a cyclic number.

It is not a de Polignac number, because 11239539157 - 2⁷ = 11239539029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11239539107) 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, 1549233 + ... + 1556470.

It is an arithmetic number, because the mean of its divisors is an integer number (894442752).

Almost surely, 2^11239539157 is an apocalyptic number.

It is an amenable number.

11239539157 is a deficient number, since it is larger than the sum of its proper divisors (3071544875).

11239539157 is a wasteful number, since it uses less digits than its factorization.

11239539157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105768.

The product of its digits is 255150, while the sum is 46.

The spelling of 11239539157 in words is "eleven billion, two hundred thirty-nine million, five hundred thirty-nine thousand, one hundred fifty-seven".