31909542682 has 32 divisors (see below), whose sum is σ = 50018284800. Its totient is φ = 15248253888.

The previous prime is 31909542671. The next prime is 31909542719. The reversal of 31909542682 is 28624590913.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8994433 + ... + 8997979.

It is an arithmetic number, because the mean of its divisors is an integer number (1563071400).

Almost surely, 2^31909542682 is an apocalyptic number.

31909542682 is a deficient number, since it is larger than the sum of its proper divisors (18108742118).

31909542682 is a wasteful number, since it uses less digits than its factorization.

31909542682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 31909542682 in words is "thirty-one billion, nine hundred nine million, five hundred forty-two thousand, six hundred eighty-two".