2251389932269 has 2 divisors, whose sum is σ = 2251389932270. Its totient is φ = 2251389932268.

The previous prime is 2251389932257. The next prime is 2251389932279. The reversal of 2251389932269 is 9622399831522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2133898659369 + 117491272900 = 1460787^2 + 342770^2 .

It is a cyclic number.

It is not a de Polignac number, because 2251389932269 - 2⁵ = 2251389932237 is a prime.

It is a super-2 number, since 2×2251389932269² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2251389932279) 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, 1125694966134 + 1125694966135.

It is an arithmetic number, because the mean of its divisors is an integer number (1125694966135).

Almost surely, 2^{2251389932269} is an apocalyptic number.

It is an amenable number.

2251389932269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251389932269 is an equidigital number, since it uses as much as digits as its factorization.

2251389932269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25194240, while the sum is 61.

The spelling of 2251389932269 in words is "two trillion, two hundred fifty-one billion, three hundred eighty-nine million, nine hundred thirty-two thousand, two hundred sixty-nine".