31092905871 has 12 divisors (see below), whose sum is σ = 47553856272. Its totient is φ = 19509274176.

The previous prime is 31092905849. The next prime is 31092905897. The reversal of 31092905871 is 17850929013.

It is not a de Polignac number, because 31092905871 - 2⁹ = 31092905359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31092905771) 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 11 ways as a sum of consecutive naturals, for example, 101610651 + ... + 101610956.

It is an arithmetic number, because the mean of its divisors is an integer number (3962821356).

Almost surely, 2^31092905871 is an apocalyptic number.

31092905871 is a deficient number, since it is larger than the sum of its proper divisors (16460950401).

31092905871 is a wasteful number, since it uses less digits than its factorization.

31092905871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203221630 (or 203221627 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 31092905871 in words is "thirty-one billion, ninety-two million, nine hundred five thousand, eight hundred seventy-one".