26346133421 has 4 divisors (see below), whose sum is σ = 26843230332. Its totient is φ = 25849036512.

The previous prime is 26346133397. The next prime is 26346133423. The reversal of 26346133421 is 12433164362.

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 8998609321 + 17347524100 = 94861^2 + 131710^2 .

It is a cyclic number.

It is not a de Polignac number, because 26346133421 - 2³⁰ = 25272391597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26346133423) 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, 248548376 + ... + 248548481.

It is an arithmetic number, because the mean of its divisors is an integer number (6710807583).

Almost surely, 2^26346133421 is an apocalyptic number.

It is an amenable number.

26346133421 is a deficient number, since it is larger than the sum of its proper divisors (497096911).

26346133421 is an equidigital number, since it uses as much as digits as its factorization.

26346133421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497096910.

The product of its digits is 62208, while the sum is 35.

Adding to 26346133421 its reverse (12433164362), we get a palindrome (38779297783).

The spelling of 26346133421 in words is "twenty-six billion, three hundred forty-six million, one hundred thirty-three thousand, four hundred twenty-one".