25500779569641 has 8 divisors (see below), whose sum is σ = 35790567817120. Its totient is φ = 16105755517632.

The previous prime is 25500779569609. The next prime is 25500779569709. The reversal of 25500779569641 is 14696597700552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25500779569641 - 2⁵ = 25500779569609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25500779569541) 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 7 ways as a sum of consecutive naturals, for example, 223691048800 + ... + 223691048913.

It is an arithmetic number, because the mean of its divisors is an integer number (4473820977140).

Almost surely, 2^{25500779569641} is an apocalyptic number.

It is an amenable number.

25500779569641 is a deficient number, since it is larger than the sum of its proper divisors (10289788247479).

25500779569641 is a wasteful number, since it uses less digits than its factorization.

25500779569641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447382097735.

The product of its (nonzero) digits is 142884000, while the sum is 66.

The spelling of 25500779569641 in words is "twenty-five trillion, five hundred billion, seven hundred seventy-nine million, five hundred sixty-nine thousand, six hundred forty-one".