8780252269 has 2 divisors, whose sum is σ = 8780252270. Its totient is φ = 8780252268.

The previous prime is 8780252227. The next prime is 8780252281. The reversal of 8780252269 is 9622520878.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8609427369 + 170824900 = 92787^2 + 13070^2 .

It is a cyclic number.

It is not a de Polignac number, because 8780252269 - 2⁷ = 8780252141 is a prime.

It is a super-2 number, since 2×8780252269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8780252069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4390126134 + 4390126135.

It is an arithmetic number, because the mean of its divisors is an integer number (4390126135).

Almost surely, 2^8780252269 is an apocalyptic number.

It is an amenable number.

8780252269 is a deficient number, since it is larger than the sum of its proper divisors (1).

8780252269 is an equidigital number, since it uses as much as digits as its factorization.

8780252269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 8780252269 is about 93703.0003201605. Note that the first 3 decimals coincide. The cubic root of 8780252269 is about 2063.0147417000.

The spelling of 8780252269 in words is "eight billion, seven hundred eighty million, two hundred fifty-two thousand, two hundred sixty-nine".