25273384260769 has 2 divisors, whose sum is σ = 25273384260770. Its totient is φ = 25273384260768.

The previous prime is 25273384260763. The next prime is 25273384260833. The reversal of 25273384260769 is 96706248337252.

It is a happy number.

It is an a-pointer prime, because the next prime (25273384260833) can be obtained adding 25273384260769 to its sum of digits (64).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24599814432400 + 673569828369 = 4959820^2 + 820713^2 .

It is a cyclic number.

It is not a de Polignac number, because 25273384260769 - 2¹¹ = 25273384258721 is a prime.

It is a super-2 number, since 2×25273384260769² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25273384260769.

It is not a weakly prime, because it can be changed into another prime (25273384260763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12636692130384 + 12636692130385.

It is an arithmetic number, because the mean of its divisors is an integer number (12636692130385).

Almost surely, 2^{25273384260769} is an apocalyptic number.

It is an amenable number.

25273384260769 is a deficient number, since it is larger than the sum of its proper divisors (1).

25273384260769 is an equidigital number, since it uses as much as digits as its factorization.

25273384260769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 182891520, while the sum is 64.

The spelling of 25273384260769 in words is "twenty-five trillion, two hundred seventy-three billion, three hundred eighty-four million, two hundred sixty thousand, seven hundred sixty-nine".