31940932090 has 16 divisors (see below), whose sum is σ = 57558511872. Its totient is φ = 12761965264.

The previous prime is 31940932063. The next prime is 31940932099. The reversal of 31940932090 is 9023904913.

It is not an unprimeable number, because it can be changed into a prime (31940932099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1791634 + ... + 1809373.

It is an arithmetic number, because the mean of its divisors is an integer number (3597406992).

Almost surely, 2^31940932090 is an apocalyptic number.

31940932090 is a deficient number, since it is larger than the sum of its proper divisors (25617579782).

31940932090 is a wasteful number, since it uses less digits than its factorization.

31940932090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3601901.

The product of its (nonzero) digits is 52488, while the sum is 40.

The spelling of 31940932090 in words is "thirty-one billion, nine hundred forty million, nine hundred thirty-two thousand, ninety".