6485718716831 has 24 divisors (see below), whose sum is σ = 7103134477824. Its totient is φ = 5914003463280.

The previous prime is 6485718716809. The next prime is 6485718716857. The reversal of 6485718716831 is 1386178175846.

It is not a de Polignac number, because 6485718716831 - 2¹⁰ = 6485718715807 is a prime.

It is a super-2 number, since 2×6485718716831² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6485718716431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1852721 + ... + 4050186.

It is an arithmetic number, because the mean of its divisors is an integer number (295963936576).

Almost surely, 2^{6485718716831} is an apocalyptic number.

6485718716831 is a deficient number, since it is larger than the sum of its proper divisors (617415760993).

6485718716831 is a wasteful number, since it uses less digits than its factorization.

6485718716831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5903051 (or 5903028 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 65.

The spelling of 6485718716831 in words is "six trillion, four hundred eighty-five billion, seven hundred eighteen million, seven hundred sixteen thousand, eight hundred thirty-one".