31864234336 has 24 divisors (see below), whose sum is σ = 68435685864. Its totient is φ = 14483742720.

The previous prime is 31864234333. The next prime is 31864234361. The reversal of 31864234336 is 63343246813.

It is a junction number, because it is equal to n+sod(n) for n = 31864234292 and 31864234301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31864234333) 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, 45261345 + ... + 45262048.

It is an arithmetic number, because the mean of its divisors is an integer number (2851486911).

Almost surely, 2^31864234336 is an apocalyptic number.

It is an amenable number.

31864234336 is an abundant number, since it is smaller than the sum of its proper divisors (36571451528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31864234336 is a wasteful number, since it uses less digits than its factorization.

31864234336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90523414 (or 90523406 counting only the distinct ones).

The product of its digits is 746496, while the sum is 43.

The spelling of 31864234336 in words is "thirty-one billion, eight hundred sixty-four million, two hundred thirty-four thousand, three hundred thirty-six".