316806057791 has 4 divisors (see below), whose sum is σ = 321999599784. Its totient is φ = 311612515800.

The previous prime is 316806057761. The next prime is 316806057823. The reversal of 316806057791 is 197750608613.

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

It is a cyclic number.

It is not a de Polignac number, because 316806057791 - 2⁶ = 316806057727 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 (316806057761) 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, 2596770905 + ... + 2596771026.

It is an arithmetic number, because the mean of its divisors is an integer number (80499899946).

Almost surely, 2^316806057791 is an apocalyptic number.

316806057791 is a deficient number, since it is larger than the sum of its proper divisors (5193541993).

316806057791 is an equidigital number, since it uses as much as digits as its factorization.

316806057791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193541992.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 316806057791 in words is "three hundred sixteen billion, eight hundred six million, fifty-seven thousand, seven hundred ninety-one".