531090774860 has 12 divisors (see below), whose sum is σ = 1115290627248. Its totient is φ = 212436309936.

The previous prime is 531090774859. The next prime is 531090774871. The reversal of 531090774860 is 68477090135.

It is a super-2 number, since 2×531090774860² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 531090774799 and 531090774808.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13277269352 + ... + 13277269391.

It is an arithmetic number, because the mean of its divisors is an integer number (92940885604).

Almost surely, 2^531090774860 is an apocalyptic number.

It is an amenable number.

531090774860 is an abundant number, since it is smaller than the sum of its proper divisors (584199852388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531090774860 is a wasteful number, since it uses less digits than its factorization.

531090774860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26554538752 (or 26554538750 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 531090774860 in words is "five hundred thirty-one billion, ninety million, seven hundred seventy-four thousand, eight hundred sixty".