6464644730 has 16 divisors (see below), whose sum is σ = 12142289664. Its totient is φ = 2473429200.

The previous prime is 6464644727. The next prime is 6464644741. The reversal of 6464644730 is 374464646.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14053346 + ... + 14053805.

It is an arithmetic number, because the mean of its divisors is an integer number (758893104).

Almost surely, 2^6464644730 is an apocalyptic number.

6464644730 is a deficient number, since it is larger than the sum of its proper divisors (5677644934).

6464644730 is a wasteful number, since it uses less digits than its factorization.

6464644730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28107181.

The product of its (nonzero) digits is 1161216, while the sum is 44.

The square root of 6464644730 is about 80403.0144335397. The cubic root of 6464644730 is about 1862.8657341017.

The spelling of 6464644730 in words is "six billion, four hundred sixty-four million, six hundred forty-four thousand, seven hundred thirty".