318648043856 has 20 divisors (see below), whose sum is σ = 618359020704. Its totient is φ = 159071522400.

The previous prime is 318648043829. The next prime is 318648043859. The reversal of 318648043856 is 658340846813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318648043859) 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, 15770810 + ... + 15791001.

Almost surely, 2^318648043856 is an apocalyptic number.

It is an amenable number.

318648043856 is a deficient number, since it is larger than the sum of its proper divisors (299710976848).

318648043856 is a wasteful number, since it uses less digits than its factorization.

318648043856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31562450 (or 31562444 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 56.

The spelling of 318648043856 in words is "three hundred eighteen billion, six hundred forty-eight million, forty-three thousand, eight hundred fifty-six".