2370618721 has 9 divisors (see below), whose sum is σ = 2392683033. Its totient is φ = 2348757360.

The previous prime is 2370618709. The next prime is 2370618727. The reversal of 2370618721 is 1278160732.

The square root of 2370618721 is 48689.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2069249121 + 301369600 = 45489^2 + 17360^2 .

It is not a de Polignac number, because 2370618721 - 2⁵ = 2370618689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2370618727) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8812575 + ... + 8812843.

Almost surely, 2^2370618721 is an apocalyptic number.

2370618721 is the 48689-th square number.

2370618721 is the 24345-th centered octagonal number.

It is an amenable number.

2370618721 is a deficient number, since it is larger than the sum of its proper divisors (22064312).

2370618721 is an frugal number, since it uses more digits than its factorization.

2370618721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The cubic root of 2370618721 is about 1333.3798974502.

Multiplying 2370618721 by its product of nonzero digits (28224), we get a square (66908342781504 = 8179752²).

The spelling of 2370618721 in words is "two billion, three hundred seventy million, six hundred eighteen thousand, seven hundred twenty-one".