27026265989 has 4 divisors (see below), whose sum is σ = 28201321056. Its totient is φ = 25851210924.

The previous prime is 27026265971. The next prime is 27026265997. The reversal of 27026265989 is 98956262072.

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 27026265989 - 2²⁰ = 27025217413 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 (27026265949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587527499 + ... + 587527544.

It is an arithmetic number, because the mean of its divisors is an integer number (7050330264).

Almost surely, 2^27026265989 is an apocalyptic number.

It is an amenable number.

27026265989 is a deficient number, since it is larger than the sum of its proper divisors (1175055067).

27026265989 is a wasteful number, since it uses less digits than its factorization.

27026265989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175055066.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 27026265989 in words is "twenty-seven billion, twenty-six million, two hundred sixty-five thousand, nine hundred eighty-nine".