27809266959 has 12 divisors (see below), whose sum is σ = 40349073856. Its totient is φ = 18456373152.

The previous prime is 27809266943. The next prime is 27809266997. The reversal of 27809266959 is 95966290872.

It is not a de Polignac number, because 27809266959 - 2⁴ = 27809266943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27809266896 and 27809266905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27809266159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6926062 + ... + 6930075.

Almost surely, 2^27809266959 is an apocalyptic number.

27809266959 is a deficient number, since it is larger than the sum of its proper divisors (12539806897).

27809266959 is a wasteful number, since it uses less digits than its factorization.

27809266959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13856366 (or 13856363 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

The spelling of 27809266959 in words is "twenty-seven billion, eight hundred nine million, two hundred sixty-six thousand, nine hundred fifty-nine".