31860618023 has 6 divisors (see below), whose sum is σ = 34499959344. Its totient is φ = 29409801096.

The previous prime is 31860618007. The next prime is 31860618043. The reversal of 31860618023 is 32081606813.

It is not a de Polignac number, because 31860618023 - 2⁴ = 31860618007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31860618043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94262015 + ... + 94262352.

It is an arithmetic number, because the mean of its divisors is an integer number (5749993224).

Almost surely, 2^31860618023 is an apocalyptic number.

31860618023 is a deficient number, since it is larger than the sum of its proper divisors (2639341321).

31860618023 is a wasteful number, since it uses less digits than its factorization.

31860618023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188524393 (or 188524380 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 31860618023 in words is "thirty-one billion, eight hundred sixty million, six hundred eighteen thousand, twenty-three".