318656730706 has 16 divisors (see below), whose sum is σ = 483347585016. Its totient is φ = 157549920256.

The previous prime is 318656730659. The next prime is 318656730761. The reversal of 318656730706 is 607037656813.

It can be written as a sum of positive squares in 4 ways, for example, as 297270300625 + 21386430081 = 545225^2 + 146241^2 .

It is a super-2 number, since 2×318656730706² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2192191 + ... + 2333026.

Almost surely, 2^318656730706 is an apocalyptic number.

318656730706 is a deficient number, since it is larger than the sum of its proper divisors (164690854310).

318656730706 is a wasteful number, since it uses less digits than its factorization.

318656730706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4525613.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 318656730706 in words is "three hundred eighteen billion, six hundred fifty-six million, seven hundred thirty thousand, seven hundred six".