31209694484 has 24 divisors (see below), whose sum is σ = 54902990016. Its totient is φ = 15523200000.

The previous prime is 31209694471. The next prime is 31209694489. The reversal of 31209694484 is 48449690213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31209694489) 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, 1942484 + ... + 1958484.

It is an arithmetic number, because the mean of its divisors is an integer number (2287624584).

Almost surely, 2^31209694484 is an apocalyptic number.

It is an amenable number.

31209694484 is a deficient number, since it is larger than the sum of its proper divisors (23693295532).

31209694484 is a wasteful number, since it uses less digits than its factorization.

31209694484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18527 (or 18525 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 31209694484 in words is "thirty-one billion, two hundred nine million, six hundred ninety-four thousand, four hundred eighty-four".