316640878841 has 4 divisors (see below), whose sum is σ = 361875290112. Its totient is φ = 271406467572.

The previous prime is 316640878831. The next prime is 316640878843. The reversal of 316640878841 is 148878046613.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 316640878841 - 2¹⁸ = 316640616697 is a prime.

It is a super-2 number, since 2×316640878841² (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 3 ways as a sum of consecutive naturals, for example, 22617205625 + ... + 22617205638.

It is an arithmetic number, because the mean of its divisors is an integer number (90468822528).

Almost surely, 2^316640878841 is an apocalyptic number.

It is an amenable number.

316640878841 is a deficient number, since it is larger than the sum of its proper divisors (45234411271).

316640878841 is an equidigital number, since it uses as much as digits as its factorization.

316640878841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45234411270.

The product of its (nonzero) digits is 6193152, while the sum is 56.

The spelling of 316640878841 in words is "three hundred sixteen billion, six hundred forty million, eight hundred seventy-eight thousand, eight hundred forty-one".