6464717343245 has 24 divisors (see below), whose sum is σ = 9025911649944. Its totient is φ = 4432116909696.

The previous prime is 6464717343197. The next prime is 6464717343269. The reversal of 6464717343245 is 5423437174646.

It can be written as a sum of positive squares in 4 ways, for example, as 1420551713161 + 5044165630084 = 1191869^2 + 2245922^2 .

It is not a de Polignac number, because 6464717343245 - 2⁶ = 6464717343181 is a prime.

It is a super-2 number, since 2×6464717343245² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1167314 + ... + 3780483.

It is an arithmetic number, because the mean of its divisors is an integer number (376079652081).

Almost surely, 2^{6464717343245} is an apocalyptic number.

It is an amenable number.

6464717343245 is a deficient number, since it is larger than the sum of its proper divisors (2561194306699).

6464717343245 is a wasteful number, since it uses less digits than its factorization.

6464717343245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953149 (or 4953142 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 56.

The spelling of 6464717343245 in words is "six trillion, four hundred sixty-four billion, seven hundred seventeen million, three hundred forty-three thousand, two hundred forty-five".