42953867269 has 2 divisors, whose sum is σ = 42953867270. Its totient is φ = 42953867268.

The previous prime is 42953867263. The next prime is 42953867323. The reversal of 42953867269 is 96276835924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42575370244 + 378497025 = 206338^2 + 19455^2 .

It is a cyclic number.

It is not a de Polignac number, because 42953867269 - 2⁹ = 42953866757 is a prime.

It is a super-2 number, since 2×42953867269² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42953867263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21476933634 + 21476933635.

It is an arithmetic number, because the mean of its divisors is an integer number (21476933635).

Almost surely, 2^42953867269 is an apocalyptic number.

It is an amenable number.

42953867269 is a deficient number, since it is larger than the sum of its proper divisors (1).

42953867269 is an equidigital number, since it uses as much as digits as its factorization.

42953867269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39191040, while the sum is 61.

The spelling of 42953867269 in words is "forty-two billion, nine hundred fifty-three million, eight hundred sixty-seven thousand, two hundred sixty-nine".