316721690791 has 16 divisors (see below), whose sum is σ = 348187868928. Its totient is φ = 285705288000.

The previous prime is 316721690741. The next prime is 316721690837. The reversal of 316721690791 is 197096127613.

It is not a de Polignac number, because 316721690791 - 2¹⁵ = 316721658023 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 (316721690731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1401411 + ... + 1611643.

It is an arithmetic number, because the mean of its divisors is an integer number (21761741808).

Almost surely, 2^316721690791 is an apocalyptic number.

316721690791 is a deficient number, since it is larger than the sum of its proper divisors (31466178137).

316721690791 is a wasteful number, since it uses less digits than its factorization.

316721690791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211302.

The product of its (nonzero) digits is 857304, while the sum is 52.

The spelling of 316721690791 in words is "three hundred sixteen billion, seven hundred twenty-one million, six hundred ninety thousand, seven hundred ninety-one".