326172431530 has 24 divisors (see below), whose sum is σ = 645336201636. Its totient is φ = 118608156480.

The previous prime is 326172431483. The next prime is 326172431567. The reversal of 326172431530 is 35134271623.

It can be written as a sum of positive squares in 2 ways, for example, as 320262050889 + 5910380641 = 565917^2 + 76879^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 326172431530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134780787 + ... + 134783206.

Almost surely, 2^326172431530 is an apocalyptic number.

326172431530 is a deficient number, since it is larger than the sum of its proper divisors (319163770106).

326172431530 is a wasteful number, since it uses less digits than its factorization.

326172431530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269564022 (or 269564011 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 326172431530 in words is "three hundred twenty-six billion, one hundred seventy-two million, four hundred thirty-one thousand, five hundred thirty".