25979269663 has 8 divisors (see below), whose sum is σ = 26166575232. Its totient is φ = 25792342296.

The previous prime is 25979269579. The next prime is 25979269681. The reversal of 25979269663 is 36696297952.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25979269663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25979269595 and 25979269604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25979260663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44056 + ... + 232162.

It is an arithmetic number, because the mean of its divisors is an integer number (3270821904).

Almost surely, 2^25979269663 is an apocalyptic number.

25979269663 is a deficient number, since it is larger than the sum of its proper divisors (187305569).

25979269663 is a wasteful number, since it uses less digits than its factorization.

25979269663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189101.

The product of its digits is 66134880, while the sum is 64.

The spelling of 25979269663 in words is "twenty-five billion, nine hundred seventy-nine million, two hundred sixty-nine thousand, six hundred sixty-three".