25474834090369 has 2 divisors, whose sum is σ = 25474834090370. Its totient is φ = 25474834090368.

The previous prime is 25474834090333. The next prime is 25474834090373. The reversal of 25474834090369 is 96309043847452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18559406811969 + 6915427278400 = 4308063^2 + 2629720^2 .

It is a cyclic number.

It is not a de Polignac number, because 25474834090369 - 2¹⁹ = 25474833566081 is a prime.

It is a super-2 number, since 2×25474834090369² (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 25474834090369.

It is not a weakly prime, because it can be changed into another prime (25474834090319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12737417045184 + 12737417045185.

It is an arithmetic number, because the mean of its divisors is an integer number (12737417045185).

Almost surely, 2^{25474834090369} is an apocalyptic number.

It is an amenable number.

25474834090369 is a deficient number, since it is larger than the sum of its proper divisors (1).

25474834090369 is an equidigital number, since it uses as much as digits as its factorization.

25474834090369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 156764160, while the sum is 64.

The spelling of 25474834090369 in words is "twenty-five trillion, four hundred seventy-four billion, eight hundred thirty-four million, ninety thousand, three hundred sixty-nine".