25969819263 has 4 divisors (see below), whose sum is σ = 34626425688. Its totient is φ = 17313212840.

The previous prime is 25969819243. The next prime is 25969819279. The reversal of 25969819263 is 36291896952.

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 25969819263 - 2⁶ = 25969819199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25969819197 and 25969819206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25969819243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4328303208 + ... + 4328303213.

It is an arithmetic number, because the mean of its divisors is an integer number (8656606422).

Almost surely, 2^25969819263 is an apocalyptic number.

25969819263 is a deficient number, since it is larger than the sum of its proper divisors (8656606425).

25969819263 is an equidigital number, since it uses as much as digits as its factorization.

25969819263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8656606424.

The product of its digits is 12597120, while the sum is 60.

The spelling of 25969819263 in words is "twenty-five billion, nine hundred sixty-nine million, eight hundred nineteen thousand, two hundred sixty-three".