7320644620 has 24 divisors (see below), whose sum is σ = 15788851344. Its totient is φ = 2849115456.

The previous prime is 7320644579. The next prime is 7320644621. The reversal of 7320644620 is 264460237.

It is not an unprimeable number, because it can be changed into a prime (7320644621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4945642 + ... + 4947121.

It is an arithmetic number, because the mean of its divisors is an integer number (657868806).

Almost surely, 2^7320644620 is an apocalyptic number.

It is an amenable number.

7320644620 is an abundant number, since it is smaller than the sum of its proper divisors (8468206724).

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

7320644620 is a wasteful number, since it uses less digits than its factorization.

7320644620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9892809 (or 9892807 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 7320644620 is about 85560.7656580982. The cubic root of 7320644620 is about 1941.7043706957.

The spelling of 7320644620 in words is "seven billion, three hundred twenty million, six hundred forty-four thousand, six hundred twenty".