2637720072 has 64 divisors (see below), whose sum is σ = 7890624000. Its totient is φ = 811605312.

The previous prime is 2637720067. The next prime is 2637720083. The reversal of 2637720072 is 2700277362.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 466872 + ... + 472487.

It is an arithmetic number, because the mean of its divisors is an integer number (123291000).

Almost surely, 2^2637720072 is an apocalyptic number.

It is an amenable number.

2637720072 is an abundant number, since it is smaller than the sum of its proper divisors (5252903928).

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

2637720072 is a wasteful number, since it uses less digits than its factorization.

2637720072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939387 (or 939377 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 2637720072 is about 51358.7390032115. The cubic root of 2637720072 is about 1381.6866711271.

The spelling of 2637720072 in words is "two billion, six hundred thirty-seven million, seven hundred twenty thousand, seventy-two".