27804317659 has 2 divisors, whose sum is σ = 27804317660. Its totient is φ = 27804317658.

The previous prime is 27804317633. The next prime is 27804317689. The reversal of 27804317659 is 95671340872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27804317659 - 2⁷ = 27804317531 is a prime.

It is not a weakly prime, because it can be changed into another prime (27804317609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13902158829 + 13902158830.

It is an arithmetic number, because the mean of its divisors is an integer number (13902158830).

It is a 1-persistent number, because it is pandigital, but 2⋅27804317659 = 55608635318 is not.

Almost surely, 2^27804317659 is an apocalyptic number.

27804317659 is a deficient number, since it is larger than the sum of its proper divisors (1).

27804317659 is an equidigital number, since it uses as much as digits as its factorization.

27804317659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 27804317659 in words is "twenty-seven billion, eight hundred four million, three hundred seventeen thousand, six hundred fifty-nine".