313775820840 has 64 divisors (see below), whose sum is σ = 941730753600. Its totient is φ = 83637704192.

The previous prime is 313775820823. The next prime is 313775820857. The reversal of 313775820840 is 48028577313.

It is an interprime number because it is at equal distance from previous prime (313775820823) and next prime (313775820857).

It is a self number, because there is not a number n which added to its sum of digits gives 313775820840.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278277 + ... + 839636.

It is an arithmetic number, because the mean of its divisors is an integer number (14714543025).

Almost surely, 2^313775820840 is an apocalyptic number.

313775820840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313775820840 is an abundant number, since it is smaller than the sum of its proper divisors (627954932760).

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

313775820840 is a wasteful number, since it uses less digits than its factorization.

313775820840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120266 (or 1120262 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 313775820840 in words is "three hundred thirteen billion, seven hundred seventy-five million, eight hundred twenty thousand, eight hundred forty".