2566274869 has 2 divisors, whose sum is σ = 2566274870. Its totient is φ = 2566274868.

The previous prime is 2566274863. The next prime is 2566274927. The reversal of 2566274869 is 9684726652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2030583844 + 535691025 = 45062^2 + 23145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2566274869 - 2⁷ = 2566274741 is a prime.

It is a super-2 number, since 2×2566274869² = 13171533406521934322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2566274863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283137434 + 1283137435.

It is an arithmetic number, because the mean of its divisors is an integer number (1283137435).

Almost surely, 2^2566274869 is an apocalyptic number.

It is an amenable number.

2566274869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2566274869 is an equidigital number, since it uses as much as digits as its factorization.

2566274869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 55.

The square root of 2566274869 is about 50658.4136052443. The cubic root of 2566274869 is about 1369.0975406994.

The spelling of 2566274869 in words is "two billion, five hundred sixty-six million, two hundred seventy-four thousand, eight hundred sixty-nine".