316640878842 has 16 divisors (see below), whose sum is σ = 633290391360. Its totient is φ = 105545520672.

The previous prime is 316640878831. The next prime is 316640878843. The reversal of 316640878842 is 248878046613.

It is a super-2 number, since 2×316640878842² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (316640878843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179134 + ... + 815702.

It is an arithmetic number, because the mean of its divisors is an integer number (39580649460).

Almost surely, 2^316640878842 is an apocalyptic number.

316640878842 is an abundant number, since it is smaller than the sum of its proper divisors (316649512518).

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

316640878842 is a wasteful number, since it uses less digits than its factorization.

316640878842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719477.

The product of its (nonzero) digits is 12386304, while the sum is 57.

The spelling of 316640878842 in words is "three hundred sixteen billion, six hundred forty million, eight hundred seventy-eight thousand, eight hundred forty-two".