26872489213 has 4 divisors (see below), whose sum is σ = 27123634080. Its totient is φ = 26621344348.

The previous prime is 26872489201. The next prime is 26872489219. The reversal of 26872489213 is 31298427862.

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 26872489213 - 2⁹ = 26872488701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26872489219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125572273 + ... + 125572486.

It is an arithmetic number, because the mean of its divisors is an integer number (6780908520).

Almost surely, 2^26872489213 is an apocalyptic number.

It is an amenable number.

26872489213 is a deficient number, since it is larger than the sum of its proper divisors (251144867).

26872489213 is a wasteful number, since it uses less digits than its factorization.

26872489213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251144866.

The product of its digits is 2322432, while the sum is 52.

The spelling of 26872489213 in words is "twenty-six billion, eight hundred seventy-two million, four hundred eighty-nine thousand, two hundred thirteen".