2722866509 has 6 divisors (see below), whose sum is σ = 2992902990. Its totient is φ = 2475333080.

The previous prime is 2722866499. The next prime is 2722866541. The reversal of 2722866509 is 9056682272.

It can be written as a sum of positive squares in only one way, i.e., 2452428484 + 270438025 = 49522^2 + 16445^2 .

It is not a de Polignac number, because 2722866509 - 2¹² = 2722862413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2722860509) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11251394 + ... + 11251635.

It is an arithmetic number, because the mean of its divisors is an integer number (498817165).

Almost surely, 2^2722866509 is an apocalyptic number.

It is an amenable number.

2722866509 is a deficient number, since it is larger than the sum of its proper divisors (270036481).

2722866509 is a wasteful number, since it uses less digits than its factorization.

2722866509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22503051 (or 22503040 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 2722866509 is about 52181.0934055621. The cubic root of 2722866509 is about 1396.3966022093.

The spelling of 2722866509 in words is "two billion, seven hundred twenty-two million, eight hundred sixty-six thousand, five hundred nine".