313997843826 has 12 divisors (see below), whose sum is σ = 680328661662. Its totient is φ = 104665947936.

The previous prime is 313997843821. The next prime is 313997843849. The reversal of 313997843826 is 628348799313.

It can be written as a sum of positive squares in only one way, i.e., 275521059801 + 38476784025 = 524901^2 + 196155^2 .

It is not an unprimeable number, because it can be changed into a prime (313997843821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8722162311 + ... + 8722162346.

Almost surely, 2^313997843826 is an apocalyptic number.

313997843826 is an abundant number, since it is smaller than the sum of its proper divisors (366330817836).

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

313997843826 is a wasteful number, since it uses less digits than its factorization.

313997843826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17444324665 (or 17444324662 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The spelling of 313997843826 in words is "three hundred thirteen billion, nine hundred ninety-seven million, eight hundred forty-three thousand, eight hundred twenty-six".