318045019956 has 12 divisors (see below), whose sum is σ = 742105046592. Its totient is φ = 106015006648.

The previous prime is 318045019951. The next prime is 318045020009. The reversal of 318045019956 is 659910540813.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 318045019899 and 318045019908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318045019951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13251875820 + ... + 13251875843.

It is an arithmetic number, because the mean of its divisors is an integer number (61842087216).

Almost surely, 2^318045019956 is an apocalyptic number.

It is an amenable number.

318045019956 is an abundant number, since it is smaller than the sum of its proper divisors (424060026636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

318045019956 is a wasteful number, since it uses less digits than its factorization.

318045019956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26503751670 (or 26503751668 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 51.

The spelling of 318045019956 in words is "three hundred eighteen billion, forty-five million, nineteen thousand, nine hundred fifty-six".