313845204538 has 4 divisors (see below), whose sum is σ = 470767806810. Its totient is φ = 156922602268.

The previous prime is 313845204469. The next prime is 313845204553. The reversal of 313845204538 is 835402548313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 242057112049 + 71788092489 = 491993^2 + 267933^2 .

It is a super-2 number, since 2×313845204538² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78461301133 + ... + 78461301136.

Almost surely, 2^313845204538 is an apocalyptic number.

313845204538 is a deficient number, since it is larger than the sum of its proper divisors (156922602272).

313845204538 is a wasteful number, since it uses less digits than its factorization.

313845204538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156922602271.

The product of its (nonzero) digits is 1382400, while the sum is 46.

The spelling of 313845204538 in words is "three hundred thirteen billion, eight hundred forty-five million, two hundred four thousand, five hundred thirty-eight".