27660898843 has 2 divisors, whose sum is σ = 27660898844. Its totient is φ = 27660898842.

The previous prime is 27660898807. The next prime is 27660898873. The reversal of 27660898843 is 34889806672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27660898843 - 2²⁵ = 27627344411 is a prime.

It is not a weakly prime, because it can be changed into another prime (27660898873) 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 as a sum of consecutive naturals, namely, 13830449421 + 13830449422.

It is an arithmetic number, because the mean of its divisors is an integer number (13830449422).

Almost surely, 2^27660898843 is an apocalyptic number.

27660898843 is a deficient number, since it is larger than the sum of its proper divisors (1).

27660898843 is an equidigital number, since it uses as much as digits as its factorization.

27660898843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27869184, while the sum is 61.

The spelling of 27660898843 in words is "twenty-seven billion, six hundred sixty million, eight hundred ninety-eight thousand, eight hundred forty-three".