318861510045 has 64 divisors (see below), whose sum is σ = 575382818304. Its totient is φ = 149610193920.

The previous prime is 318861510017. The next prime is 318861510047. The reversal of 318861510045 is 540015168813.

It is not a de Polignac number, because 318861510045 - 2²³ = 318853121437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 318861509979 and 318861510006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318861510047) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1114015 + ... + 1370675.

It is an arithmetic number, because the mean of its divisors is an integer number (8990356536).

Almost surely, 2^318861510045 is an apocalyptic number.

It is an amenable number.

318861510045 is a deficient number, since it is larger than the sum of its proper divisors (256521308259).

318861510045 is a wasteful number, since it uses less digits than its factorization.

318861510045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256982.

The product of its (nonzero) digits is 115200, while the sum is 42.

Adding to 318861510045 its reverse (540015168813), we get a palindrome (858876678858).

The spelling of 318861510045 in words is "three hundred eighteen billion, eight hundred sixty-one million, five hundred ten thousand, forty-five".