318718672477 has 8 divisors (see below), whose sum is σ = 325190548800. Its totient is φ = 312301876320.

The previous prime is 318718672463. The next prime is 318718672483. The reversal of 318718672477 is 774276817813.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318718672477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318718678477) 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, 13758352 + ... + 13781497.

It is an arithmetic number, because the mean of its divisors is an integer number (40648818600).

Almost surely, 2^318718672477 is an apocalyptic number.

It is an amenable number.

318718672477 is a deficient number, since it is larger than the sum of its proper divisors (6471876323).

318718672477 is a wasteful number, since it uses less digits than its factorization.

318718672477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27540083.

The product of its digits is 22127616, while the sum is 61.

The spelling of 318718672477 in words is "three hundred eighteen billion, seven hundred eighteen million, six hundred seventy-two thousand, four hundred seventy-seven".