26221744127 has 4 divisors (see below), whose sum is σ = 26253683736. Its totient is φ = 26189804520.

The previous prime is 26221744093. The next prime is 26221744141. The reversal of 26221744127 is 72144712262.

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 26221744127 - 2¹⁶ = 26221678591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26221744177) 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, 15968573 + ... + 15970214.

It is an arithmetic number, because the mean of its divisors is an integer number (6563420934).

Almost surely, 2^26221744127 is an apocalyptic number.

26221744127 is a deficient number, since it is larger than the sum of its proper divisors (31939609).

26221744127 is an equidigital number, since it uses as much as digits as its factorization.

26221744127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31939608.

The product of its digits is 75264, while the sum is 38.

The spelling of 26221744127 in words is "twenty-six billion, two hundred twenty-one million, seven hundred forty-four thousand, one hundred twenty-seven".