25343034389 has 2 divisors, whose sum is σ = 25343034390. Its totient is φ = 25343034388.

The previous prime is 25343034323. The next prime is 25343034397. The reversal of 25343034389 is 98343034352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14488936900 + 10854097489 = 120370^2 + 104183^2 .

It is a cyclic number.

It is not a de Polignac number, because 25343034389 - 2⁸ = 25343034133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25343034089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12671517194 + 12671517195.

It is an arithmetic number, because the mean of its divisors is an integer number (12671517195).

Almost surely, 2^25343034389 is an apocalyptic number.

It is an amenable number.

25343034389 is a deficient number, since it is larger than the sum of its proper divisors (1).

25343034389 is an equidigital number, since it uses as much as digits as its factorization.

25343034389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 44.

The spelling of 25343034389 in words is "twenty-five billion, three hundred forty-three million, thirty-four thousand, three hundred eighty-nine".