26664760841 has 4 divisors (see below), whose sum is σ = 27116706000. Its totient is φ = 26212815684.

The previous prime is 26664760823. The next prime is 26664760849. The reversal of 26664760841 is 14806746662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26664760841 - 2¹⁰ = 26664759817 is a prime.

It is a super-2 number, since 2×26664760841² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26664760841.

It is not an unprimeable number, because it can be changed into a prime (26664760849) 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 3 ways as a sum of consecutive naturals, for example, 225972491 + ... + 225972608.

It is an arithmetic number, because the mean of its divisors is an integer number (6779176500).

Almost surely, 2^26664760841 is an apocalyptic number.

It is an amenable number.

26664760841 is a deficient number, since it is larger than the sum of its proper divisors (451945159).

26664760841 is an equidigital number, since it uses as much as digits as its factorization.

26664760841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451945158.

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 26664760841 in words is "twenty-six billion, six hundred sixty-four million, seven hundred sixty thousand, eight hundred forty-one".