531932173922 has 18 divisors (see below), whose sum is σ = 811744041729. Its totient is φ = 261428275480.

The previous prime is 531932173921. The next prime is 531932174027. The reversal of 531932173922 is 229371239135.

It can be written as a sum of positive squares in 2 ways, for example, as 471720338761 + 60211835161 = 686819^2 + 245381^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=515719.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531932173921) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 60850472 + ... + 60859212.

Almost surely, 2^531932173922 is an apocalyptic number.

531932173922 is a deficient number, since it is larger than the sum of its proper divisors (279811867807).

531932173922 is an frugal number, since it uses more digits than its factorization.

531932173922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17602 (or 8802 counting only the distinct ones).

The product of its digits is 612360, while the sum is 47.

The spelling of 531932173922 in words is "five hundred thirty-one billion, nine hundred thirty-two million, one hundred seventy-three thousand, nine hundred twenty-two".