312239488860 has 216 divisors, whose sum is σ = 1047412416960. Its totient is φ = 75223309824.

The previous prime is 312239488843. The next prime is 312239488861. The reversal of 312239488860 is 68884932213.

312239488860 is a `hidden beast` number, since 3 + 122 + 39 + 488 + 8 + 6 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 312239488797 and 312239488806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312239488861) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1320546 + ... + 1538934.

It is an arithmetic number, because the mean of its divisors is an integer number (4849131560).

Almost surely, 2^312239488860 is an apocalyptic number.

312239488860 is a gapful number since it is divisible by the number (30) 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 312239488860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523706208480).

312239488860 is an abundant number, since it is smaller than the sum of its proper divisors (735172928100).

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

312239488860 is a wasteful number, since it uses less digits than its factorization.

312239488860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218477 (or 218459 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 312239488860 in words is "three hundred twelve billion, two hundred thirty-nine million, four hundred eighty-eight thousand, eight hundred sixty".