316131810677 has 4 divisors (see below), whose sum is σ = 320462383500. Its totient is φ = 311801237856.

The previous prime is 316131810629. The next prime is 316131810691. The reversal of 316131810677 is 776018131613.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80255490436 + 235876320241 = 283294^2 + 485671^2 .

It is a cyclic number.

It is not a de Polignac number, because 316131810677 - 2¹² = 316131806581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316131810277) 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, 2165286302 + ... + 2165286447.

It is an arithmetic number, because the mean of its divisors is an integer number (80115595875).

Almost surely, 2^316131810677 is an apocalyptic number.

It is an amenable number.

316131810677 is a deficient number, since it is larger than the sum of its proper divisors (4330572823).

316131810677 is an equidigital number, since it uses as much as digits as its factorization.

316131810677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330572822.

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 316131810677 in words is "three hundred sixteen billion, one hundred thirty-one million, eight hundred ten thousand, six hundred seventy-seven".