26879451073 has 4 divisors (see below), whose sum is σ = 26884519380. Its totient is φ = 26874382768.

The previous prime is 26879451023. The next prime is 26879451091. The reversal of 26879451073 is 37015497862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 247495824 + 26631955249 = 15732^2 + 163193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26879451073 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 26879451073.

It is not an unprimeable number, because it can be changed into a prime (26879451023) 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, 2526190 + ... + 2536807.

It is an arithmetic number, because the mean of its divisors is an integer number (6721129845).

It is a 2-persistent number, because it is pandigital, and so is 2⋅26879451073 = 53758902146, but 3⋅26879451073 = 80638353219 is not.

Almost surely, 2^26879451073 is an apocalyptic number.

It is an amenable number.

26879451073 is a deficient number, since it is larger than the sum of its proper divisors (5068307).

26879451073 is an equidigital number, since it uses as much as digits as its factorization.

26879451073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5068306.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 26879451073 in words is "twenty-six billion, eight hundred seventy-nine million, four hundred fifty-one thousand, seventy-three".