2872811269 has 2 divisors, whose sum is σ = 2872811270. Its totient is φ = 2872811268.

The previous prime is 2872811231. The next prime is 2872811353. The reversal of 2872811269 is 9621182782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2073618369 + 799192900 = 45537^2 + 28270^2 .

It is a cyclic number.

It is not a de Polignac number, because 2872811269 - 2¹⁵ = 2872778501 is a prime.

It is a super-2 number, since 2×2872811269² = 16506089174586780722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2872811219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1436405634 + 1436405635.

It is an arithmetic number, because the mean of its divisors is an integer number (1436405635).

Almost surely, 2^2872811269 is an apocalyptic number.

It is an amenable number.

2872811269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2872811269 is an equidigital number, since it uses as much as digits as its factorization.

2872811269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 46.

The square root of 2872811269 is about 53598.6125659984. The cubic root of 2872811269 is about 1421.5725600682.

The spelling of 2872811269 in words is "two billion, eight hundred seventy-two million, eight hundred eleven thousand, two hundred sixty-nine".