26726494891273 has 4 divisors (see below), whose sum is σ = 26731351610368. Its totient is φ = 26721638172180.

The previous prime is 26726494891249. The next prime is 26726494891289. The reversal of 26726494891273 is 37219849462762.

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 26726494891273 - 2²¹ = 26726492794121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26726494891373) 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, 2428351293 + ... + 2428362298.

It is an arithmetic number, because the mean of its divisors is an integer number (6682837902592).

Almost surely, 2^{26726494891273} is an apocalyptic number.

It is an amenable number.

26726494891273 is a deficient number, since it is larger than the sum of its proper divisors (4856719095).

26726494891273 is an equidigital number, since it uses as much as digits as its factorization.

26726494891273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4856719094.

The product of its digits is 438939648, while the sum is 70.

The spelling of 26726494891273 in words is "twenty-six trillion, seven hundred twenty-six billion, four hundred ninety-four million, eight hundred ninety-one thousand, two hundred seventy-three".