318727278068 has 6 divisors (see below), whose sum is σ = 557772736626. Its totient is φ = 159363639032.

The previous prime is 318727278059. The next prime is 318727278073. The reversal of 318727278068 is 860872727813.

It can be written as a sum of positive squares in only one way, i.e., 206295823204 + 112431454864 = 454198^2 + 335308^2 .

It is a junction number, because it is equal to n+sod(n) for n = 318727277998 and 318727278016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39840909755 + ... + 39840909762.

It is an arithmetic number, because the mean of its divisors is an integer number (92962122771).

Almost surely, 2^318727278068 is an apocalyptic number.

It is an amenable number.

318727278068 is a deficient number, since it is larger than the sum of its proper divisors (239045458558).

318727278068 is a wasteful number, since it uses less digits than its factorization.

318727278068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79681819521 (or 79681819519 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 59.

The spelling of 318727278068 in words is "three hundred eighteen billion, seven hundred twenty-seven million, two hundred seventy-eight thousand, sixty-eight".