7644264320 has 128 divisors (see below), whose sum is σ = 22784025600. Its totient is φ = 2382612480.

The previous prime is 7644264289. The next prime is 7644264347. The reversal of 7644264320 is 234624467.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28280 + ... + 126839.

It is an arithmetic number, because the mean of its divisors is an integer number (178000200).

Almost surely, 2^7644264320 is an apocalyptic number.

7644264320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7644264320 is an abundant number, since it is smaller than the sum of its proper divisors (15139761280).

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

7644264320 is a wasteful number, since it uses less digits than its factorization.

7644264320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155156 (or 155144 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 38.

The square root of 7644264320 is about 87431.4835742823. The cubic root of 7644264320 is about 1969.9047700623.

Adding to 7644264320 its reverse (234624467), we get a palindrome (7878888787).

The spelling of 7644264320 in words is "seven billion, six hundred forty-four million, two hundred sixty-four thousand, three hundred twenty".