27289316745 has 112 divisors (see below), whose sum is σ = 50270375232. Its totient is φ = 14210951040.

The previous prime is 27289316729. The next prime is 27289316749. The reversal of 27289316745 is 54761398272.

It is a happy number.

27289316745 is a `hidden beast` number, since 2 + 7 + 289 + 316 + 7 + 45 = 666.

It is not a de Polignac number, because 27289316745 - 2⁴ = 27289316729 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27289316691 and 27289316700.

It is not an unprimeable number, because it can be changed into a prime (27289316749) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 31991739 + ... + 31992591.

It is an arithmetic number, because the mean of its divisors is an integer number (448842636).

Almost surely, 2^27289316745 is an apocalyptic number.

It is an amenable number.

27289316745 is a deficient number, since it is larger than the sum of its proper divisors (22981058487).

27289316745 is an equidigital number, since it uses as much as digits as its factorization.

27289316745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1059 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 27289316745 in words is "twenty-seven billion, two hundred eighty-nine million, three hundred sixteen thousand, seven hundred forty-five".