31907492494 has 8 divisors (see below), whose sum is σ = 49154785848. Its totient is φ = 15522563880.

The previous prime is 31907492489. The next prime is 31907492497. The reversal of 31907492494 is 49429470913.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31907492497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215591092 + ... + 215591239.

It is an arithmetic number, because the mean of its divisors is an integer number (6144348231).

Almost surely, 2^31907492494 is an apocalyptic number.

31907492494 is a deficient number, since it is larger than the sum of its proper divisors (17247293354).

31907492494 is a wasteful number, since it uses less digits than its factorization.

31907492494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431182370.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 31907492494 in words is "thirty-one billion, nine hundred seven million, four hundred ninety-two thousand, four hundred ninety-four".