11687415531273 has 24 divisors (see below), whose sum is σ = 17879566094208. Its totient is φ = 7625831403024.

The previous prime is 11687415531229. The next prime is 11687415531289. The reversal of 11687415531273 is 37213551478611.

11687415531273 is a `hidden beast` number, since 1 + 1 + 6 + 8 + 7 + 4 + 1 + 553 + 12 + 73 = 666.

It is not a de Polignac number, because 11687415531273 - 2²⁵ = 11687381976841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11687415731273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 511651986 + ... + 511674827.

It is an arithmetic number, because the mean of its divisors is an integer number (744981920592).

Almost surely, 2^{11687415531273} is an apocalyptic number.

It is an amenable number.

11687415531273 is a deficient number, since it is larger than the sum of its proper divisors (6192150562935).

11687415531273 is an equidigital number, since it uses as much as digits as its factorization.

11687415531273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023326875 (or 1023326863 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The spelling of 11687415531273 in words is "eleven trillion, six hundred eighty-seven billion, four hundred fifteen million, five hundred thirty-one thousand, two hundred seventy-three".