318364087553 has 4 divisors (see below), whose sum is σ = 320870891520. Its totient is φ = 315857283588.

The previous prime is 318364087549. The next prime is 318364087589. The reversal of 318364087553 is 355780463813.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 318364087553 - 2² = 318364087549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 318364087495 and 318364087504.

It is not an unprimeable number, because it can be changed into a prime (318364087253) 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, 1253401793 + ... + 1253402046.

It is an arithmetic number, because the mean of its divisors is an integer number (80217722880).

Almost surely, 2^318364087553 is an apocalyptic number.

It is an amenable number.

318364087553 is a deficient number, since it is larger than the sum of its proper divisors (2506803967).

318364087553 is a wasteful number, since it uses less digits than its factorization.

318364087553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506803966.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 318364087553 in words is "three hundred eighteen billion, three hundred sixty-four million, eighty-seven thousand, five hundred fifty-three".