318780420504 has 64 divisors (see below), whose sum is σ = 980862839040. Its totient is φ = 84073956480.

The previous prime is 318780420499. The next prime is 318780420547. The reversal of 318780420504 is 405024087813.

It is a super-2 number, since 2×318780420504² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 72978682 + ... + 72983049.

It is an arithmetic number, because the mean of its divisors is an integer number (15325981860).

Almost surely, 2^318780420504 is an apocalyptic number.

It is an amenable number.

318780420504 is an abundant number, since it is smaller than the sum of its proper divisors (662082418536).

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

318780420504 is a wasteful number, since it uses less digits than its factorization.

318780420504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145961760 (or 145961756 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 318780420504 in words is "three hundred eighteen billion, seven hundred eighty million, four hundred twenty thousand, five hundred four".