31860427368 has 256 divisors, whose sum is σ = 101719203840. Its totient is φ = 8076441600.

The previous prime is 31860427363. The next prime is 31860427397. The reversal of 31860427368 is 86372406813.

It is not an unprimeable number, because it can be changed into a prime (31860427363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15442705 + ... + 15444767.

It is an arithmetic number, because the mean of its divisors is an integer number (397340640).

Almost surely, 2^31860427368 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 31860427368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50859601920).

31860427368 is an abundant number, since it is smaller than the sum of its proper divisors (69858776472).

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

31860427368 is a wasteful number, since it uses less digits than its factorization.

31860427368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288 (or 2284 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 31860427368 in words is "thirty-one billion, eight hundred sixty million, four hundred twenty-seven thousand, three hundred sixty-eight".