25749964759 has 4 divisors (see below), whose sum is σ = 26075913760. Its totient is φ = 25424015760.

The previous prime is 25749964733. The next prime is 25749964817. The reversal of 25749964759 is 95746994752.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25749964759 - 2⁷ = 25749964631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25749964694 and 25749964703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25749964729) 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 in 3 ways as a sum of consecutive naturals, for example, 162974382 + ... + 162974539.

It is an arithmetic number, because the mean of its divisors is an integer number (6518978440).

Almost surely, 2^25749964759 is an apocalyptic number.

25749964759 is a deficient number, since it is larger than the sum of its proper divisors (325949001).

25749964759 is an equidigital number, since it uses as much as digits as its factorization.

25749964759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325949000.

The product of its digits is 171460800, while the sum is 67.

The spelling of 25749964759 in words is "twenty-five billion, seven hundred forty-nine million, nine hundred sixty-four thousand, seven hundred fifty-nine".