27908041249 has 9 divisors (see below), whose sum is σ = 30677800881. Its totient is φ = 25369276020.

The previous prime is 27908041219. The next prime is 27908041283. The reversal of 27908041249 is 94214080972.

The square root of 27908041249 is 167057.

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

It is not a de Polignac number, because 27908041249 - 2¹⁹ = 27907516961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27908041199 and 27908041208.

It is not an unprimeable number, because it can be changed into a prime (27908041219) 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, 1830034 + ... + 1845220.

Almost surely, 2^27908041249 is an apocalyptic number.

27908041249 is the 167057-th square number.

27908041249 is the 83529-th centered octagonal number.

It is an amenable number.

27908041249 is a deficient number, since it is larger than the sum of its proper divisors (2769759632).

27908041249 is an frugal number, since it uses more digits than its factorization.

27908041249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30396 (or 15198 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 27908041249 in words is "twenty-seven billion, nine hundred eight million, forty-one thousand, two hundred forty-nine".