26852243581 has 16 divisors (see below), whose sum is σ = 27999304704. Its totient is φ = 25729372224.

The previous prime is 26852243549. The next prime is 26852243641. The reversal of 26852243581 is 18534225862.

It is a cyclic number.

It is not a de Polignac number, because 26852243581 - 2⁵ = 26852243549 is a prime.

It is a super-2 number, since 2×26852243581² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26852243501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 959716 + ... + 987298.

It is an arithmetic number, because the mean of its divisors is an integer number (1749956544).

Almost surely, 2^26852243581 is an apocalyptic number.

It is an amenable number.

26852243581 is a deficient number, since it is larger than the sum of its proper divisors (1147061123).

26852243581 is a wasteful number, since it uses less digits than its factorization.

26852243581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28020.

The product of its digits is 921600, while the sum is 46.

The spelling of 26852243581 in words is "twenty-six billion, eight hundred fifty-two million, two hundred forty-three thousand, five hundred eighty-one".