531473738641 has 16 divisors (see below), whose sum is σ = 552171980800. Its totient is φ = 511189228368.

The previous prime is 531473738603. The next prime is 531473738651. The reversal of 531473738641 is 146837374135.

It is a cyclic number.

It is not a de Polignac number, because 531473738641 - 2¹⁷ = 531473607569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531473738651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1081060 + ... + 1493866.

It is an arithmetic number, because the mean of its divisors is an integer number (34510748800).

Almost surely, 2^531473738641 is an apocalyptic number.

It is an amenable number.

531473738641 is a deficient number, since it is larger than the sum of its proper divisors (20698242159).

531473738641 is a wasteful number, since it uses less digits than its factorization.

531473738641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413308.

The product of its digits is 5080320, while the sum is 52.

The spelling of 531473738641 in words is "five hundred thirty-one billion, four hundred seventy-three million, seven hundred thirty-eight thousand, six hundred forty-one".