27708268028 has 12 divisors (see below), whose sum is σ = 55416536112. Its totient is φ = 11874972000.

The previous prime is 27708268019. The next prime is 27708268031. The reversal of 27708268028 is 82086280772.

It is a happy number.

27708268028 is an admirable number.

It is a super-2 number, since 2×27708268028² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494790473 + ... + 494790528.

It is an arithmetic number, because the mean of its divisors is an integer number (4618044676).

Almost surely, 2^27708268028 is an apocalyptic number.

27708268028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27708268028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27708268028 is a wasteful number, since it uses less digits than its factorization.

27708268028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989581012 (or 989581010 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 50.

The spelling of 27708268028 in words is "twenty-seven billion, seven hundred eight million, two hundred sixty-eight thousand, twenty-eight".