318793352977 has 4 divisors (see below), whose sum is σ = 347774566896. Its totient is φ = 289812139060.

The previous prime is 318793352963. The next prime is 318793352981. The reversal of 318793352977 is 779253397813.

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 a de Polignac number, because none of the positive numbers 2^k-318793352977 is a prime.

It is a super-2 number, since 2×318793352977² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318793352947) 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, 14490606943 + ... + 14490606964.

It is an arithmetic number, because the mean of its divisors is an integer number (86943641724).

Almost surely, 2^318793352977 is an apocalyptic number.

It is an amenable number.

318793352977 is a deficient number, since it is larger than the sum of its proper divisors (28981213919).

318793352977 is a wasteful number, since it uses less digits than its factorization.

318793352977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28981213918.

The product of its digits is 60011280, while the sum is 64.

The spelling of 318793352977 in words is "three hundred eighteen billion, seven hundred ninety-three million, three hundred fifty-two thousand, nine hundred seventy-seven".