27728507467 has 2 divisors, whose sum is σ = 27728507468. Its totient is φ = 27728507466.

The previous prime is 27728507423. The next prime is 27728507519. The reversal of 27728507467 is 76470582772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27728507467 - 2¹¹ = 27728505419 is a prime.

It is not a weakly prime, because it can be changed into another prime (27728502467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13864253733 + 13864253734.

It is an arithmetic number, because the mean of its divisors is an integer number (13864253734).

Almost surely, 2^27728507467 is an apocalyptic number.

27728507467 is a deficient number, since it is larger than the sum of its proper divisors (1).

27728507467 is an equidigital number, since it uses as much as digits as its factorization.

27728507467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9219840, while the sum is 55.

The spelling of 27728507467 in words is "twenty-seven billion, seven hundred twenty-eight million, five hundred seven thousand, four hundred sixty-seven".