2798621269 has 2 divisors, whose sum is σ = 2798621270. Its totient is φ = 2798621268.

The previous prime is 2798621213. The next prime is 2798621291. The reversal of 2798621269 is 9621268972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2765708100 + 32913169 = 52590^2 + 5737^2 .

It is a cyclic number.

It is not a de Polignac number, because 2798621269 - 2¹¹ = 2798619221 is a prime.

It is a super-2 number, since 2×2798621269² = 15664562014598340722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2798621299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1399310634 + 1399310635.

It is an arithmetic number, because the mean of its divisors is an integer number (1399310635).

Almost surely, 2^2798621269 is an apocalyptic number.

It is an amenable number.

2798621269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2798621269 is an equidigital number, since it uses as much as digits as its factorization.

2798621269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 52.

The square root of 2798621269 is about 52901.9968337680. The cubic root of 2798621269 is about 1409.2283672594.

The spelling of 2798621269 in words is "two billion, seven hundred ninety-eight million, six hundred twenty-one thousand, two hundred sixty-nine".