27029982447 has 20 divisors (see below), whose sum is σ = 43484133000. Its totient is φ = 16633834704.

The previous prime is 27029982443. The next prime is 27029982481. The reversal of 27029982447 is 74428992072.

It is a happy number.

27029982447 is a `hidden beast` number, since 270 + 299 + 82 + 4 + 4 + 7 = 666.

It is not a de Polignac number, because 27029982447 - 2² = 27029982443 is a prime.

It is a super-3 number, since 3×27029982447³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27029982393 and 27029982402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27029982443) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12833697 + ... + 12835802.

It is an arithmetic number, because the mean of its divisors is an integer number (2174206650).

Almost surely, 2^27029982447 is an apocalyptic number.

27029982447 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

27029982447 is a deficient number, since it is larger than the sum of its proper divisors (16454150553).

27029982447 is a wasteful number, since it uses less digits than its factorization.

27029982447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25669524 (or 25669515 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 27029982447 in words is "twenty-seven billion, twenty-nine million, nine hundred eighty-two thousand, four hundred forty-seven".