27807785046081 has 12 divisors (see below), whose sum is σ = 40732530209280. Its totient is φ = 18277417400760.

The previous prime is 27807785046073. The next prime is 27807785046089. The reversal of 27807785046081 is 18064058770872.

27807785046081 is a `hidden beast` number, since 27 + 8 + 0 + 7 + 78 + 5 + 0 + 460 + 81 = 666.

It is an interprime number because it is at equal distance from previous prime (27807785046073) and next prime (27807785046089).

It is not a de Polignac number, because 27807785046081 - 2³ = 27807785046073 is a prime.

It is a super-2 number, since 2×27807785046081² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (27807785046089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21758829601 + ... + 21758830878.

It is an arithmetic number, because the mean of its divisors is an integer number (3394377517440).

Almost surely, 2^{27807785046081} is an apocalyptic number.

It is an amenable number.

27807785046081 is a deficient number, since it is larger than the sum of its proper divisors (12924745163199).

27807785046081 is a wasteful number, since it uses less digits than its factorization.

27807785046081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43517660556 (or 43517660553 counting only the distinct ones).

The product of its (nonzero) digits is 42147840, while the sum is 63.

The spelling of 27807785046081 in words is "twenty-seven trillion, eight hundred seven billion, seven hundred eighty-five million, forty-six thousand, eighty-one".