318646324042 has 16 divisors (see below), whose sum is σ = 489705341832. Its totient is φ = 155412449280.

The previous prime is 318646324019. The next prime is 318646324043. The reversal of 318646324042 is 240423646813.

It can be written as a sum of positive squares in 4 ways, for example, as 149041551481 + 169604772561 = 386059^2 + 411831^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 318646324042.

It is not an unprimeable number, because it can be changed into a prime (318646324043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213028 + ... + 826240.

Almost surely, 2^318646324042 is an apocalyptic number.

318646324042 is a deficient number, since it is larger than the sum of its proper divisors (171059017790).

318646324042 is a wasteful number, since it uses less digits than its factorization.

318646324042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619593.

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 318646324042 in words is "three hundred eighteen billion, six hundred forty-six million, three hundred twenty-four thousand, forty-two".