318865848868 has 24 divisors (see below), whose sum is σ = 640272475584. Its totient is φ = 136112340000.

The previous prime is 318865848859. The next prime is 318865848869. The reversal of 318865848868 is 868848568813.

It is a self number, because there is not a number n which added to its sum of digits gives 318865848868.

It is not an unprimeable number, because it can be changed into a prime (318865848869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22678363 + ... + 22692418.

It is an arithmetic number, because the mean of its divisors is an integer number (26678019816).

Almost surely, 2^318865848868 is an apocalyptic number.

It is an amenable number.

318865848868 is an abundant number, since it is smaller than the sum of its proper divisors (321406626716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

318865848868 is a wasteful number, since it uses less digits than its factorization.

318865848868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45371043 (or 45371041 counting only the distinct ones).

The product of its digits is 566231040, while the sum is 73.

The spelling of 318865848868 in words is "three hundred eighteen billion, eight hundred sixty-five million, eight hundred forty-eight thousand, eight hundred sixty-eight".