26453443117 has 4 divisors (see below), whose sum is σ = 26611847136. Its totient is φ = 26295039100.

The previous prime is 26453443099. The next prime is 26453443193. The reversal of 26453443117 is 71134435462.

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 26453443117 - 2¹⁵ = 26453410349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26453443117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26459443117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79201759 + ... + 79202092.

It is an arithmetic number, because the mean of its divisors is an integer number (6652961784).

Almost surely, 2^26453443117 is an apocalyptic number.

It is an amenable number.

26453443117 is a deficient number, since it is larger than the sum of its proper divisors (158404019).

26453443117 is a wasteful number, since it uses less digits than its factorization.

26453443117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158404018.

The product of its digits is 241920, while the sum is 40.

Adding to 26453443117 its reverse (71134435462), we get a palindrome (97587878579).

The spelling of 26453443117 in words is "twenty-six billion, four hundred fifty-three million, four hundred forty-three thousand, one hundred seventeen".