11559609806923 has 16 divisors (see below), whose sum is σ = 12000731904000. Its totient is φ = 11122768535040.

The previous prime is 11559609806867. The next prime is 11559609806959. The reversal of 11559609806923 is 32960890695511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11559609806923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11559609806623) 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 15 ways as a sum of consecutive naturals, for example, 43554978 + ... + 43819576.

It is an arithmetic number, because the mean of its divisors is an integer number (750045744000).

Almost surely, 2^{11559609806923} is an apocalyptic number.

11559609806923 is a deficient number, since it is larger than the sum of its proper divisors (441122097077).

11559609806923 is a wasteful number, since it uses less digits than its factorization.

11559609806923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272682.

The product of its (nonzero) digits is 31492800, while the sum is 64.

The spelling of 11559609806923 in words is "eleven trillion, five hundred fifty-nine billion, six hundred nine million, eight hundred six thousand, nine hundred twenty-three".