8431365172 has 12 divisors (see below), whose sum is σ = 14763534660. Its totient is φ = 4213212416.

The previous prime is 8431365127. The next prime is 8431365181. The reversal of 8431365172 is 2715631348.

It can be written as a sum of positive squares in 2 ways, for example, as 2521445796 + 5909919376 = 50214^2 + 76876^2 .

It is a super-2 number, since 2×8431365172² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609853 + ... + 623524.

It is an arithmetic number, because the mean of its divisors is an integer number (1230294555).

Almost surely, 2^8431365172 is an apocalyptic number.

It is an amenable number.

8431365172 is a deficient number, since it is larger than the sum of its proper divisors (6332169488).

8431365172 is a wasteful number, since it uses less digits than its factorization.

8431365172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235090 (or 1235088 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 8431365172 is about 91822.4655081751. The cubic root of 8431365172 is about 2035.3196858451.

The spelling of 8431365172 in words is "eight billion, four hundred thirty-one million, three hundred sixty-five thousand, one hundred seventy-two".