318927794953 has 4 divisors (see below), whose sum is σ = 320959182340. Its totient is φ = 316896407568.

The previous prime is 318927794947. The next prime is 318927795047. The reversal of 318927794953 is 359497729813.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 161582292729 + 157345502224 = 401973^2 + 396668^2 .

It is a cyclic number.

It is not a de Polignac number, because 318927794953 - 2³³ = 310337860361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318927794753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1015693458 + ... + 1015693771.

It is an arithmetic number, because the mean of its divisors is an integer number (80239795585).

Almost surely, 2^318927794953 is an apocalyptic number.

It is an amenable number.

318927794953 is a deficient number, since it is larger than the sum of its proper divisors (2031387387).

318927794953 is a wasteful number, since it uses less digits than its factorization.

318927794953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031387386.

The product of its digits is 102876480, while the sum is 67.

The spelling of 318927794953 in words is "three hundred eighteen billion, nine hundred twenty-seven million, seven hundred ninety-four thousand, nine hundred fifty-three".