2272664737 has 12 divisors (see below), whose sum is σ = 2799225540. Its totient is φ = 1833409536.

The previous prime is 2272664711. The next prime is 2272664741. The reversal of 2272664737 is 7374662722.

It can be written as a sum of positive squares in 2 ways, for example, as 704583936 + 1568080801 = 26544^2 + 39599^2 .

It is not a de Polignac number, because 2272664737 - 2¹⁵ = 2272631969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2272664437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1363312 + ... + 1364977.

It is an arithmetic number, because the mean of its divisors is an integer number (233268795).

Almost surely, 2^2272664737 is an apocalyptic number.

It is an amenable number.

2272664737 is a deficient number, since it is larger than the sum of its proper divisors (526560803).

2272664737 is a wasteful number, since it uses less digits than its factorization.

2272664737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728320 (or 2728313 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 46.

The square root of 2272664737 is about 47672.4735775269. The cubic root of 2272664737 is about 1314.7558881251.

The spelling of 2272664737 in words is "two billion, two hundred seventy-two million, six hundred sixty-four thousand, seven hundred thirty-seven".