25743849641 has 2 divisors, whose sum is σ = 25743849642. Its totient is φ = 25743849640.

The previous prime is 25743849577. The next prime is 25743849643. The reversal of 25743849641 is 14694834752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13355269225 + 12388580416 = 115565^2 + 111304^2 .

It is a cyclic number.

It is not a de Polignac number, because 25743849641 - 2⁶ = 25743849577 is a prime.

Together with 25743849643, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25743849643) 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, 12871924820 + 12871924821.

It is an arithmetic number, because the mean of its divisors is an integer number (12871924821).

Almost surely, 2^25743849641 is an apocalyptic number.

It is an amenable number.

25743849641 is a deficient number, since it is larger than the sum of its proper divisors (1).

25743849641 is an equidigital number, since it uses as much as digits as its factorization.

25743849641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 53.

The spelling of 25743849641 in words is "twenty-five billion, seven hundred forty-three million, eight hundred forty-nine thousand, six hundred forty-one".