11940585975 has 48 divisors (see below), whose sum is σ = 22349239200. Its totient is φ = 6248136960.

The previous prime is 11940585871. The next prime is 11940585991. The reversal of 11940585975 is 57958504911.

It is a happy number.

11940585975 is a `hidden beast` number, since 1 + 1 + 9 + 40 + 5 + 8 + 597 + 5 = 666.

It is not a de Polignac number, because 11940585975 - 2⁹ = 11940585463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 131110 + ... + 202659.

It is an arithmetic number, because the mean of its divisors is an integer number (465609150).

Almost surely, 2^11940585975 is an apocalyptic number.

11940585975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11940585975 is a deficient number, since it is larger than the sum of its proper divisors (10408653225).

11940585975 is a wasteful number, since it uses less digits than its factorization.

11940585975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333841 (or 333830 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 54.

The spelling of 11940585975 in words is "eleven billion, nine hundred forty million, five hundred eighty-five thousand, nine hundred seventy-five".