31730446408 has 16 divisors (see below), whose sum is σ = 59531633280. Its totient is φ = 15855344208.

The previous prime is 31730446403. The next prime is 31730446453. The reversal of 31730446408 is 80464403713.

It is not an unprimeable number, because it can be changed into a prime (31730446403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1221216 + ... + 1246927.

It is an arithmetic number, because the mean of its divisors is an integer number (3720727080).

Almost surely, 2^31730446408 is an apocalyptic number.

It is an amenable number.

31730446408 is a deficient number, since it is larger than the sum of its proper divisors (27801186872).

31730446408 is a wasteful number, since it uses less digits than its factorization.

31730446408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469756 (or 2469752 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 31730446408 in words is "thirty-one billion, seven hundred thirty million, four hundred forty-six thousand, four hundred eight".