313685607840 has 192 divisors, whose sum is σ = 1086848606592. Its totient is φ = 76044840960.

The previous prime is 313685607839. The next prime is 313685607853. The reversal of 313685607840 is 48706586313.

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, 393384 + ... + 884376.

It is an arithmetic number, because the mean of its divisors is an integer number (5660669826).

Almost surely, 2^313685607840 is an apocalyptic number.

313685607840 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 313685607840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543424303296).

313685607840 is an abundant number, since it is smaller than the sum of its proper divisors (773162998752).

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

313685607840 is a wasteful number, since it uses less digits than its factorization.

313685607840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491044 (or 491014 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 313685607840 in words is "three hundred thirteen billion, six hundred eighty-five million, six hundred seven thousand, eight hundred forty".