26819320872959 has 4 divisors (see below), whose sum is σ = 26900346011880. Its totient is φ = 26738295734040.

The previous prime is 26819320872919. The next prime is 26819320872977. The reversal of 26819320872959 is 95927802391862.

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 26819320872959 - 2²⁰ = 26819319824383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26819320872892 and 26819320872901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26819320872919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40512568964 + ... + 40512569625.

It is an arithmetic number, because the mean of its divisors is an integer number (6725086502970).

Almost surely, 2^{26819320872959} is an apocalyptic number.

26819320872959 is a deficient number, since it is larger than the sum of its proper divisors (81025138921).

26819320872959 is an equidigital number, since it uses as much as digits as its factorization.

26819320872959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81025138920.

The product of its (nonzero) digits is 235146240, while the sum is 71.

The spelling of 26819320872959 in words is "twenty-six trillion, eight hundred nineteen billion, three hundred twenty million, eight hundred seventy-two thousand, nine hundred fifty-nine".