25426375240069 has 2 divisors, whose sum is σ = 25426375240070. Its totient is φ = 25426375240068.

The previous prime is 25426375240033. The next prime is 25426375240163. The reversal of 25426375240069 is 96004257362452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25422389211844 + 3986028225 = 5042062^2 + 63135^2 .

It is a cyclic number.

It is not a de Polignac number, because 25426375240069 - 2¹⁷ = 25426375108997 is a prime.

It is a super-2 number, since 2×25426375240069² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25426375240169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12713187620034 + 12713187620035.

It is an arithmetic number, because the mean of its divisors is an integer number (12713187620035).

Almost surely, 2^{25426375240069} is an apocalyptic number.

It is an amenable number.

25426375240069 is a deficient number, since it is larger than the sum of its proper divisors (1).

25426375240069 is an equidigital number, since it uses as much as digits as its factorization.

25426375240069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21772800, while the sum is 55.

The spelling of 25426375240069 in words is "twenty-five trillion, four hundred twenty-six billion, three hundred seventy-five million, two hundred forty thousand, sixty-nine".