27728514967 has 2 divisors, whose sum is σ = 27728514968. Its totient is φ = 27728514966.

The previous prime is 27728514907. The next prime is 27728514971. The reversal of 27728514967 is 76941582772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27728514967 - 2⁷ = 27728514839 is a prime.

It is a super-2 number, since 2×27728514967² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27728514907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13864257483 + 13864257484.

It is an arithmetic number, because the mean of its divisors is an integer number (13864257484).

Almost surely, 2^27728514967 is an apocalyptic number.

27728514967 is a deficient number, since it is larger than the sum of its proper divisors (1).

27728514967 is an equidigital number, since it uses as much as digits as its factorization.

27728514967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11854080, while the sum is 58.

The spelling of 27728514967 in words is "twenty-seven billion, seven hundred twenty-eight million, five hundred fourteen thousand, nine hundred sixty-seven".