26253642163 has 8 divisors (see below), whose sum is σ = 30100024928. Its totient is φ = 22431225024.

The previous prime is 26253642139. The next prime is 26253642199. The reversal of 26253642163 is 36124635262.

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 26253642163 - 2⁹ = 26253641651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26253642133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5989056 + ... + 5993437.

It is an arithmetic number, because the mean of its divisors is an integer number (3762503116).

Almost surely, 2^26253642163 is an apocalyptic number.

26253642163 is a deficient number, since it is larger than the sum of its proper divisors (3846382765).

26253642163 is a wasteful number, since it uses less digits than its factorization.

26253642163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11982813.

The product of its digits is 311040, while the sum is 40.

The spelling of 26253642163 in words is "twenty-six billion, two hundred fifty-three million, six hundred forty-two thousand, one hundred sixty-three".