25853877663 has 16 divisors (see below), whose sum is σ = 34852097280. Its totient is φ = 17046226944.

The previous prime is 25853877659. The next prime is 25853877671. The reversal of 25853877663 is 36677835852.

It is not a de Polignac number, because 25853877663 - 2² = 25853877659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25853877597 and 25853877606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25853873663) 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 15 ways as a sum of consecutive naturals, for example, 183220 + ... + 292022.

It is an arithmetic number, because the mean of its divisors is an integer number (2178256080).

Almost surely, 2^25853877663 is an apocalyptic number.

25853877663 is a deficient number, since it is larger than the sum of its proper divisors (8998219617).

25853877663 is a wasteful number, since it uses less digits than its factorization.

25853877663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109678.

The product of its digits is 50803200, while the sum is 60.

The spelling of 25853877663 in words is "twenty-five billion, eight hundred fifty-three million, eight hundred seventy-seven thousand, six hundred sixty-three".