5637642720 has 48 divisors (see below), whose sum is σ = 17758576080. Its totient is φ = 1503371264.

The previous prime is 5637642719. The next prime is 5637642727. The reversal of 5637642720 is 272467365.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5637642727) 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, 5872065 + ... + 5873024.

It is an arithmetic number, because the mean of its divisors is an integer number (369970335).

Almost surely, 2^5637642720 is an apocalyptic number.

It is an amenable number.

5637642720 is an abundant number, since it is smaller than the sum of its proper divisors (12120933360).

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

5637642720 is a wasteful number, since it uses less digits than its factorization.

5637642720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11745107 (or 11745099 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 42.

The square root of 5637642720 is about 75084.2374936311. The cubic root of 5637642720 is about 1779.7780643213.

The spelling of 5637642720 in words is "five billion, six hundred thirty-seven million, six hundred forty-two thousand, seven hundred twenty".