864326235042269 has 2 divisors, whose sum is σ = 864326235042270. Its totient is φ = 864326235042268.

The previous prime is 864326235042253. The next prime is 864326235042359. The reversal of 864326235042269 is 962240532623468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 854511987169369 + 9814247872900 = 29232037^2 + 3132770^2 .

It is a cyclic number.

It is not a de Polignac number, because 864326235042269 - 2⁴ = 864326235042253 is a prime.

It is a super-2 number, since 2×864326235042269² (a number of 31 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (864326235042209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432163117521134 + 432163117521135.

It is an arithmetic number, because the mean of its divisors is an integer number (432163117521135).

Almost surely, 2^{864326235042269} is an apocalyptic number.

It is an amenable number.

864326235042269 is a deficient number, since it is larger than the sum of its proper divisors (1).

864326235042269 is an equidigital number, since it uses as much as digits as its factorization.

864326235042269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 179159040, while the sum is 62.

The spelling of 864326235042269 in words is "eight hundred sixty-four trillion, three hundred twenty-six billion, two hundred thirty-five million, forty-two thousand, two hundred sixty-nine".