6464313556 has 12 divisors (see below), whose sum is σ = 11702636820. Its totient is φ = 3120703040.

The previous prime is 6464313523. The next prime is 6464313601. The reversal of 6464313556 is 6553134646.

It can be written as a sum of positive squares in 2 ways, for example, as 1292402500 + 5171911056 = 35950^2 + 71916^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27863305 + ... + 27863536.

It is an arithmetic number, because the mean of its divisors is an integer number (975219735).

Almost surely, 2^6464313556 is an apocalyptic number.

It is an amenable number.

6464313556 is a deficient number, since it is larger than the sum of its proper divisors (5238323264).

6464313556 is a wasteful number, since it uses less digits than its factorization.

6464313556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55726874 (or 55726872 counting only the distinct ones).

The product of its digits is 777600, while the sum is 43.

The square root of 6464313556 is about 80400.9549445776. The cubic root of 6464313556 is about 1862.8339229578.

The spelling of 6464313556 in words is "six billion, four hundred sixty-four million, three hundred thirteen thousand, five hundred fifty-six".