27750804727 has 2 divisors, whose sum is σ = 27750804728. Its totient is φ = 27750804726.

The previous prime is 27750804689. The next prime is 27750804737. The reversal of 27750804727 is 72740805772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27750804727 - 2¹¹ = 27750802679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27750804737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13875402363 + 13875402364.

It is an arithmetic number, because the mean of its divisors is an integer number (13875402364).

Almost surely, 2^27750804727 is an apocalyptic number.

27750804727 is a deficient number, since it is larger than the sum of its proper divisors (1).

27750804727 is an equidigital number, since it uses as much as digits as its factorization.

27750804727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536640, while the sum is 49.

The spelling of 27750804727 in words is "twenty-seven billion, seven hundred fifty million, eight hundred four thousand, seven hundred twenty-seven".