6816417872964 has 36 divisors (see below), whose sum is σ = 18501705656784. Its totient is φ = 1947547963536.

The previous prime is 6816417872941. The next prime is 6816417873061. The reversal of 6816417872964 is 4692787146186.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5796273114 + ... + 5796274289.

It is an arithmetic number, because the mean of its divisors is an integer number (513936268244).

Almost surely, 2^{6816417872964} is an apocalyptic number.

It is an amenable number.

6816417872964 is an abundant number, since it is smaller than the sum of its proper divisors (11685287783820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6816417872964 is a wasteful number, since it uses less digits than its factorization.

6816417872964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11592547424 (or 11592547415 counting only the distinct ones).

The product of its digits is 195084288, while the sum is 69.

The spelling of 6816417872964 in words is "six trillion, eight hundred sixteen billion, four hundred seventeen million, eight hundred seventy-two thousand, nine hundred sixty-four".