31799943306 has 32 divisors (see below), whose sum is σ = 71825016000. Its totient is φ = 10426209840.

The previous prime is 31799943289. The next prime is 31799943311. The reversal of 31799943306 is 60334999713.

It is a super-2 number, since 2×31799943306² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 15 ways as a sum of consecutive naturals, for example, 4823656 + ... + 4830243.

It is an arithmetic number, because the mean of its divisors is an integer number (2244531750).

Almost surely, 2^31799943306 is an apocalyptic number.

31799943306 is an abundant number, since it is smaller than the sum of its proper divisors (40025072694).

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

31799943306 is a wasteful number, since it uses less digits than its factorization.

31799943306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9653971 (or 9653965 counting only the distinct ones).

The product of its (nonzero) digits is 3306744, while the sum is 54.

The spelling of 31799943306 in words is "thirty-one billion, seven hundred ninety-nine million, nine hundred forty-three thousand, three hundred six".