838040715269 has 2 divisors, whose sum is σ = 838040715270. Its totient is φ = 838040715268.

The previous prime is 838040715233. The next prime is 838040715277. The reversal of 838040715269 is 962517040838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 837536128900 + 504586369 = 915170^2 + 22463^2 .

It is a cyclic number.

It is not a de Polignac number, because 838040715269 - 2²⁴ = 838023938053 is a prime.

It is a super-2 number, since 2×838040715269² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 838040715269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838040715289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419020357634 + 419020357635.

It is an arithmetic number, because the mean of its divisors is an integer number (419020357635).

It is a 1-persistent number, because it is pandigital, but 2⋅838040715269 = 1676081430538 is not.

Almost surely, 2^838040715269 is an apocalyptic number.

It is an amenable number.

838040715269 is a deficient number, since it is larger than the sum of its proper divisors (1).

838040715269 is an equidigital number, since it uses as much as digits as its factorization.

838040715269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 838040715269 in words is "eight hundred thirty-eight billion, forty million, seven hundred fifteen thousand, two hundred sixty-nine".