31794863256 has 320 divisors, whose sum is σ = 98153748000. Its totient is φ = 9556641792.

The previous prime is 31794863239. The next prime is 31794863341. The reversal of 31794863256 is 65236849713.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 91627675 + ... + 91628021.

Almost surely, 2^31794863256 is an apocalyptic number.

31794863256 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31794863256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49076874000).

31794863256 is an abundant number, since it is smaller than the sum of its proper divisors (66358884744).

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

31794863256 is a wasteful number, since it uses less digits than its factorization.

31794863256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600 (or 587 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 31794863256 in words is "thirty-one billion, seven hundred ninety-four million, eight hundred sixty-three thousand, two hundred fifty-six".