26830221361 has 4 divisors (see below), whose sum is σ = 26832904000. Its totient is φ = 26827538724.

The previous prime is 26830221343. The next prime is 26830221401. The reversal of 26830221361 is 16312203862.

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 26830221361 - 2¹⁷ = 26830090289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26830224361) 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, 1326261 + ... + 1346338.

It is an arithmetic number, because the mean of its divisors is an integer number (6708226000).

Almost surely, 2^26830221361 is an apocalyptic number.

It is an amenable number.

26830221361 is a deficient number, since it is larger than the sum of its proper divisors (2682639).

26830221361 is a wasteful number, since it uses less digits than its factorization.

26830221361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682638.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 26830221361 in words is "twenty-six billion, eight hundred thirty million, two hundred twenty-one thousand, three hundred sixty-one".