316640671842 has 64 divisors (see below), whose sum is σ = 727359897600. Its totient is φ = 90883270080.

The previous prime is 316640671819. The next prime is 316640671849. The reversal of 316640671842 is 248176046613.

It is a super-2 number, since 2×316640671842² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 316640671791 and 316640671800.

It is not an unprimeable number, because it can be changed into a prime (316640671849) 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, 6945759 + ... + 6991197.

It is an arithmetic number, because the mean of its divisors is an integer number (11364998400).

Almost surely, 2^316640671842 is an apocalyptic number.

316640671842 is an abundant number, since it is smaller than the sum of its proper divisors (410719225758).

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

316640671842 is a wasteful number, since it uses less digits than its factorization.

316640671842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51031.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 316640671842 in words is "three hundred sixteen billion, six hundred forty million, six hundred seventy-one thousand, eight hundred forty-two".