11917522239 has 16 divisors (see below), whose sum is σ = 18162063360. Its totient is φ = 6809251680.

The previous prime is 11917522229. The next prime is 11917522249. The reversal of 11917522239 is 93222571911.

It is an interprime number because it is at equal distance from previous prime (11917522229) and next prime (11917522249).

It is not a de Polignac number, because 11917522239 - 2⁹ = 11917521727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11917522239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11917522229) 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, 200082 + ... + 252720.

It is an arithmetic number, because the mean of its divisors is an integer number (1135128960).

Almost surely, 2^11917522239 is an apocalyptic number.

11917522239 is a deficient number, since it is larger than the sum of its proper divisors (6244541121).

11917522239 is a wasteful number, since it uses less digits than its factorization.

11917522239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63430.

The product of its digits is 68040, while the sum is 42.

The spelling of 11917522239 in words is "eleven billion, nine hundred seventeen million, five hundred twenty-two thousand, two hundred thirty-nine".