318920616634 has 8 divisors (see below), whose sum is σ = 479663448660. Its totient is φ = 159032800416.

The previous prime is 318920616629. The next prime is 318920616643. The reversal of 318920616634 is 436616029813.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 318092616009 + 828000625 = 563997^2 + 28775^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213753019 + ... + 213754510.

Almost surely, 2^318920616634 is an apocalyptic number.

318920616634 is a deficient number, since it is larger than the sum of its proper divisors (160742832026).

318920616634 is a wasteful number, since it uses less digits than its factorization.

318920616634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427507904.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 318920616634 in words is "three hundred eighteen billion, nine hundred twenty million, six hundred sixteen thousand, six hundred thirty-four".