26443152255511 has 4 divisors (see below), whose sum is σ = 26444935716232. Its totient is φ = 26441368794792.

The previous prime is 26443152255503. The next prime is 26443152255523. The reversal of 26443152255511 is 11555225134462.

It is a happy number.

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 26443152255511 - 2³ = 26443152255503 is a prime.

It is a super-2 number, since 2×26443152255511² (a number of 28 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 (26443152255551) 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, 891708120 + ... + 891737773.

It is an arithmetic number, because the mean of its divisors is an integer number (6611233929058).

Almost surely, 2^{26443152255511} is an apocalyptic number.

26443152255511 is a deficient number, since it is larger than the sum of its proper divisors (1783460721).

26443152255511 is a wasteful number, since it uses less digits than its factorization.

26443152255511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783460720.

The product of its digits is 1440000, while the sum is 46.

Adding to 26443152255511 its reverse (11555225134462), we get a palindrome (37998377389973).

The spelling of 26443152255511 in words is "twenty-six trillion, four hundred forty-three billion, one hundred fifty-two million, two hundred fifty-five thousand, five hundred eleven".