27228852639 has 24 divisors (see below), whose sum is σ = 39509115360. Its totient is φ = 18070285248.

The previous prime is 27228852601. The next prime is 27228852649. The reversal of 27228852639 is 93625882272.

27228852639 is a `hidden beast` number, since 2 + 7 + 2 + 2 + 88 + 526 + 39 = 666.

It is not a de Polignac number, because 27228852639 - 2⁹ = 27228852127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27228852649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3059454 + ... + 3068340.

It is an arithmetic number, because the mean of its divisors is an integer number (1646213140).

Almost surely, 2^27228852639 is an apocalyptic number.

27228852639 is a deficient number, since it is larger than the sum of its proper divisors (12280262721).

27228852639 is a wasteful number, since it uses less digits than its factorization.

27228852639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10399 (or 10396 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 27228852639 in words is "twenty-seven billion, two hundred twenty-eight million, eight hundred fifty-two thousand, six hundred thirty-nine".