931281082368 has 384 divisors, whose sum is σ = 3064449024000. Its totient is φ = 244914978816.

The previous prime is 931281082357. The next prime is 931281082399. The reversal of 931281082368 is 863280182139.

It is a tau number, because it is divible by the number of its divisors (384).

It is a self number, because there is not a number n which added to its sum of digits gives 931281082368.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214134658 + ... + 214139006.

It is an arithmetic number, because the mean of its divisors is an integer number (7980336000).

Almost surely, 2^931281082368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 931281082368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1532224512000).

931281082368 is an abundant number, since it is smaller than the sum of its proper divisors (2133167941632).

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

931281082368 is a wasteful number, since it uses less digits than its factorization.

931281082368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777 (or 4757 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 931281082368 in words is "nine hundred thirty-one billion, two hundred eighty-one million, eighty-two thousand, three hundred sixty-eight".