313549488818 has 4 divisors (see below), whose sum is σ = 470324233230. Its totient is φ = 156774744408.

The previous prime is 313549488761. The next prime is 313549488827. The reversal of 313549488818 is 818884945313.

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., 166428913849 + 147120574969 = 407957^2 + 383563^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78387372203 + ... + 78387372206.

Almost surely, 2^313549488818 is an apocalyptic number.

313549488818 is a deficient number, since it is larger than the sum of its proper divisors (156774744412).

313549488818 is a wasteful number, since it uses less digits than its factorization.

313549488818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156774744411.

The product of its digits is 26542080, while the sum is 62.

The spelling of 313549488818 in words is "three hundred thirteen billion, five hundred forty-nine million, four hundred eighty-eight thousand, eight hundred eighteen".