531142774580 has 24 divisors (see below), whose sum is σ = 1216799811360. Its totient is φ = 193142827040.

The previous prime is 531142774573. The next prime is 531142774627. The reversal of 531142774580 is 85477241135.

It is a super-2 number, since 2×531142774580² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1207142450 + ... + 1207142889.

It is an arithmetic number, because the mean of its divisors is an integer number (50699992140).

Almost surely, 2^531142774580 is an apocalyptic number.

It is an amenable number.

531142774580 is an abundant number, since it is smaller than the sum of its proper divisors (685657036780).

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

531142774580 is a wasteful number, since it uses less digits than its factorization.

531142774580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414285359 (or 2414285357 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 47.

The spelling of 531142774580 in words is "five hundred thirty-one billion, one hundred forty-two million, seven hundred seventy-four thousand, five hundred eighty".