27734642020 has 12 divisors (see below), whose sum is σ = 58242748284. Its totient is φ = 11093856800.

The previous prime is 27734641973. The next prime is 27734642041. The reversal of 27734642020 is 2024643772.

It can be written as a sum of positive squares in 2 ways, for example, as 13683384576 + 14051257444 = 116976^2 + 118538^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 693366031 + ... + 693366070.

It is an arithmetic number, because the mean of its divisors is an integer number (4853562357).

Almost surely, 2^27734642020 is an apocalyptic number.

27734642020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27734642020 is an abundant number, since it is smaller than the sum of its proper divisors (30508106264).

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

27734642020 is a wasteful number, since it uses less digits than its factorization.

27734642020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386732110 (or 1386732108 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 37.

The spelling of 27734642020 in words is "twenty-seven billion, seven hundred thirty-four million, six hundred forty-two thousand, twenty".