27969785163499 has 2 divisors, whose sum is σ = 27969785163500. Its totient is φ = 27969785163498.

The previous prime is 27969785163493. The next prime is 27969785163571. The reversal of 27969785163499 is 99436158796972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27969785163499 - 2³ = 27969785163491 is a prime.

It is not a weakly prime, because it can be changed into another prime (27969785163491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13984892581749 + 13984892581750.

It is an arithmetic number, because the mean of its divisors is an integer number (13984892581750).

Almost surely, 2^{27969785163499} is an apocalyptic number.

27969785163499 is a deficient number, since it is larger than the sum of its proper divisors (1).

27969785163499 is an equidigital number, since it uses as much as digits as its factorization.

27969785163499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11110659840, while the sum is 85.

The spelling of 27969785163499 in words is "twenty-seven trillion, nine hundred sixty-nine billion, seven hundred eighty-five million, one hundred sixty-three thousand, four hundred ninety-nine".