2564469277 has 2 divisors, whose sum is σ = 2564469278. Its totient is φ = 2564469276.

The previous prime is 2564469263. The next prime is 2564469301. The reversal of 2564469277 is 7729644652.

2564469277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2479442436 + 85026841 = 49794^2 + 9221^2 .

It is a cyclic number.

It is not a de Polignac number, because 2564469277 - 2²³ = 2556080669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2564499277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282234638 + 1282234639.

It is an arithmetic number, because the mean of its divisors is an integer number (1282234639).

Almost surely, 2^2564469277 is an apocalyptic number.

It is an amenable number.

2564469277 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564469277 is an equidigital number, since it uses as much as digits as its factorization.

2564469277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 52.

The square root of 2564469277 is about 50640.5892244551. The cubic root of 2564469277 is about 1368.7763732900.

The spelling of 2564469277 in words is "two billion, five hundred sixty-four million, four hundred sixty-nine thousand, two hundred seventy-seven".