26897179453 has 4 divisors (see below), whose sum is σ = 26903284380. Its totient is φ = 26891074528.

The previous prime is 26897179451. The next prime is 26897179469. The reversal of 26897179453 is 35497179862.

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 2369547684 + 24527631769 = 48678^2 + 156613^2 .

It is a cyclic number.

It is not a de Polignac number, because 26897179453 - 2¹ = 26897179451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26897179391 and 26897179400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26897179451) 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, 3045850 + ... + 3054667.

It is an arithmetic number, because the mean of its divisors is an integer number (6725821095).

Almost surely, 2^26897179453 is an apocalyptic number.

It is an amenable number.

26897179453 is a deficient number, since it is larger than the sum of its proper divisors (6104927).

26897179453 is an equidigital number, since it uses as much as digits as its factorization.

26897179453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6104926.

The product of its digits is 22861440, while the sum is 61.

The spelling of 26897179453 in words is "twenty-six billion, eight hundred ninety-seven million, one hundred seventy-nine thousand, four hundred fifty-three".