27727140637 has 12 divisors (see below), whose sum is σ = 32313017280. Its totient is φ = 23722649496.

The previous prime is 27727140631. The next prime is 27727140647. The reversal of 27727140637 is 73604172772.

It is not a de Polignac number, because 27727140637 - 2¹⁵ = 27727107869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27727140631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 490437 + ... + 544042.

It is an arithmetic number, because the mean of its divisors is an integer number (2692751440).

Almost surely, 2^27727140637 is an apocalyptic number.

It is an amenable number.

27727140637 is a deficient number, since it is larger than the sum of its proper divisors (4585876643).

27727140637 is a wasteful number, since it uses less digits than its factorization.

27727140637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035040 (or 1035033 counting only the distinct ones).

The product of its (nonzero) digits is 691488, while the sum is 46.

The spelling of 27727140637 in words is "twenty-seven billion, seven hundred twenty-seven million, one hundred forty thousand, six hundred thirty-seven".