318484916291 has 4 divisors (see below), whose sum is σ = 318487806672. Its totient is φ = 318482025912.

The previous prime is 318484916251. The next prime is 318484916293. The reversal of 318484916291 is 192619484813.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318484916291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318484916293) 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, 1273076 + ... + 1502561.

It is an arithmetic number, because the mean of its divisors is an integer number (79621951668).

Almost surely, 2^318484916291 is an apocalyptic number.

318484916291 is a deficient number, since it is larger than the sum of its proper divisors (2890381).

318484916291 is a wasteful number, since it uses less digits than its factorization.

318484916291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890380.

The product of its digits is 2985984, while the sum is 56.

The spelling of 318484916291 in words is "three hundred eighteen billion, four hundred eighty-four million, nine hundred sixteen thousand, two hundred ninety-one".