27467427289 has 9 divisors (see below), whose sum is σ = 29181194557. Its totient is φ = 25849044544.

The previous prime is 27467427269. The next prime is 27467427329. The reversal of 27467427289 is 98272476472.

The square root of 27467427289 is 165733.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 278055625 + 27189371664 = 16675^2 + 164892^2 .

It is not a de Polignac number, because 27467427289 - 2⁵ = 27467427257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27467427269) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2812587 + ... + 2822335.

Almost surely, 2^27467427289 is an apocalyptic number.

27467427289 is the 165733-rd square number.

27467427289 is the 82867-th centered octagonal number.

It is an amenable number.

27467427289 is a deficient number, since it is larger than the sum of its proper divisors (1713767268).

27467427289 is an frugal number, since it uses more digits than its factorization.

27467427289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19532 (or 9766 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 58.

The spelling of 27467427289 in words is "twenty-seven billion, four hundred sixty-seven million, four hundred twenty-seven thousand, two hundred eighty-nine".