25763044661 has 8 divisors (see below), whose sum is σ = 27120482880. Its totient is φ = 24405755328.

The previous prime is 25763044627. The next prime is 25763044709. The reversal of 25763044661 is 16644036752.

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

It is a cyclic number.

It is not a de Polignac number, because 25763044661 - 2⁶ = 25763044597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25763044861) 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, 583805 + ... + 626381.

It is an arithmetic number, because the mean of its divisors is an integer number (3390060360).

Almost surely, 2^25763044661 is an apocalyptic number.

It is an amenable number.

25763044661 is a deficient number, since it is larger than the sum of its proper divisors (1357438219).

25763044661 is a wasteful number, since it uses less digits than its factorization.

25763044661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74443.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 25763044661 in words is "twenty-five billion, seven hundred sixty-three million, forty-four thousand, six hundred sixty-one".