26243216340433 has 8 divisors (see below), whose sum is σ = 26952601768808. Its totient is φ = 25533836665344.

The previous prime is 26243216340421. The next prime is 26243216340479. The reversal of 26243216340433 is 33404361234262.

It can be written as a sum of positive squares in 4 ways, for example, as 4155209095489 + 22088007244944 = 2038433^2 + 4699788^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26243216340433 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 26243216340433.

It is not an unprimeable number, because it can be changed into a prime (26243216347433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8774935 + ... + 11379187.

It is an arithmetic number, because the mean of its divisors is an integer number (3369075221101).

Almost surely, 2^{26243216340433} is an apocalyptic number.

It is an amenable number.

26243216340433 is a deficient number, since it is larger than the sum of its proper divisors (709385428375).

26243216340433 is a wasteful number, since it uses less digits than its factorization.

26243216340433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876643.

The product of its (nonzero) digits is 1492992, while the sum is 43.

Adding to 26243216340433 its reverse (33404361234262), we get a palindrome (59647577574695).

The spelling of 26243216340433 in words is "twenty-six trillion, two hundred forty-three billion, two hundred sixteen million, three hundred forty thousand, four hundred thirty-three".