31921924082 has 16 divisors (see below), whose sum is σ = 48267963072. Its totient is φ = 15832993680.

The previous prime is 31921924081. The next prime is 31921924093. The reversal of 31921924082 is 28042912913.

It is not an unprimeable number, because it can be changed into a prime (31921924081) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 66668 + ... + 261320.

It is an arithmetic number, because the mean of its divisors is an integer number (3016747692).

Almost surely, 2^31921924082 is an apocalyptic number.

31921924082 is a deficient number, since it is larger than the sum of its proper divisors (16346038990).

31921924082 is a wasteful number, since it uses less digits than its factorization.

31921924082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195313.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 31921924082 in words is "thirty-one billion, nine hundred twenty-one million, nine hundred twenty-four thousand, eighty-two".