31970343492 has 48 divisors (see below), whose sum is σ = 83344060800. Its totient is φ = 10597897440.

The previous prime is 31970343481. The next prime is 31970343541. The reversal of 31970343492 is 29434307913.

31970343492 is a `hidden beast` number, since 31 + 97 + 0 + 3 + 43 + 492 = 666.

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, 798192 + ... + 837287.

It is an arithmetic number, because the mean of its divisors is an integer number (1736334600).

Almost surely, 2^31970343492 is an apocalyptic number.

It is an amenable number.

31970343492 is an abundant number, since it is smaller than the sum of its proper divisors (51373717308).

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

31970343492 is a wasteful number, since it uses less digits than its factorization.

31970343492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635673 (or 1635665 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 31970343492 in words is "thirty-one billion, nine hundred seventy million, three hundred forty-three thousand, four hundred ninety-two".