318916319925 has 144 divisors (see below), whose sum is σ = 650857628160. Its totient is φ = 136915107840.

The previous prime is 318916319923. The next prime is 318916319927. The reversal of 318916319925 is 529913619813.

It is an interprime number because it is at equal distance from previous prime (318916319923) and next prime (318916319927).

It is not a de Polignac number, because 318916319925 - 2¹ = 318916319923 is a prime.

It is a super-2 number, since 2×318916319925² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318916319923) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 29920197 + ... + 29930853.

It is an arithmetic number, because the mean of its divisors is an integer number (4519844640).

Almost surely, 2^318916319925 is an apocalyptic number.

318916319925 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

318916319925 is an abundant number, since it is smaller than the sum of its proper divisors (331941308235).

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

318916319925 is a wasteful number, since it uses less digits than its factorization.

318916319925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11180 (or 11168 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 57.

The spelling of 318916319925 in words is "three hundred eighteen billion, nine hundred sixteen million, three hundred nineteen thousand, nine hundred twenty-five".