318078870813 has 32 divisors (see below), whose sum is σ = 515140300800. Its totient is φ = 192372534000.

The previous prime is 318078870793. The next prime is 318078870817.

318078870813 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 318078870813 - 2⁹ = 318078870301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 318078870813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318078870817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 975663 + ... + 1260188.

It is an arithmetic number, because the mean of its divisors is an integer number (16098134400).

Almost surely, 2^318078870813 is an apocalyptic number.

318078870813 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

318078870813 is a deficient number, since it is larger than the sum of its proper divisors (197061429987).

318078870813 is a wasteful number, since it uses less digits than its factorization.

318078870813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236350 (or 2236344 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 54.

The spelling of 318078870813 in words is "three hundred eighteen billion, seventy-eight million, eight hundred seventy thousand, eight hundred thirteen".