26454144443 has 4 divisors (see below), whose sum is σ = 26455266360. Its totient is φ = 26453022528.

The previous prime is 26454144421. The next prime is 26454144473. The reversal of 26454144443 is 34444145462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34444145462 = 2 ⋅17222072731.

It is a cyclic number.

It is not a de Polignac number, because 26454144443 - 2¹² = 26454140347 is a prime.

It is a super-2 number, since 2×26454144443² (a number of 22 digits) contains 22 as substring.

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 26454144443.

It is not an unprimeable number, because it can be changed into a prime (26454144473) 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, 524813 + ... + 573006.

It is an arithmetic number, because the mean of its divisors is an integer number (6613816590).

Almost surely, 2^26454144443 is an apocalyptic number.

26454144443 is a deficient number, since it is larger than the sum of its proper divisors (1121917).

26454144443 is a wasteful number, since it uses less digits than its factorization.

26454144443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121916.

The product of its digits is 737280, while the sum is 41.

The spelling of 26454144443 in words is "twenty-six billion, four hundred fifty-four million, one hundred forty-four thousand, four hundred forty-three".