26725330789 has 4 divisors (see below), whose sum is σ = 26970517420. Its totient is φ = 26480144160.

The previous prime is 26725330781. The next prime is 26725330871. The reversal of 26725330789 is 98703352762.

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 13284406564 + 13440924225 = 115258^2 + 115935^2 .

It is a cyclic number.

It is not a de Polignac number, because 26725330789 - 2³ = 26725330781 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 (26725330781) 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, 122593152 + ... + 122593369.

It is an arithmetic number, because the mean of its divisors is an integer number (6742629355).

Almost surely, 2^26725330789 is an apocalyptic number.

It is an amenable number.

26725330789 is a deficient number, since it is larger than the sum of its proper divisors (245186631).

26725330789 is a wasteful number, since it uses less digits than its factorization.

26725330789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245186630.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 26725330789 in words is "twenty-six billion, seven hundred twenty-five million, three hundred thirty thousand, seven hundred eighty-nine".