27726608020 has 24 divisors (see below), whose sum is σ = 58240058184. Its totient is φ = 11087942016.

The previous prime is 27726608011. The next prime is 27726608027. The reversal of 27726608020 is 2080662772.

It can be written as a sum of positive squares in 4 ways, for example, as 1698593796 + 26028014224 = 41214^2 + 161332^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27726608027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83607 + ... + 249886.

It is an arithmetic number, because the mean of its divisors is an integer number (2426669091).

Almost surely, 2^27726608020 is an apocalyptic number.

27726608020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27726608020 is an abundant number, since it is smaller than the sum of its proper divisors (30513450164).

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

27726608020 is a wasteful number, since it uses less digits than its factorization.

27726608020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337659 (or 337657 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 27726608020 in words is "twenty-seven billion, seven hundred twenty-six million, six hundred eight thousand, twenty".