27819414697 has 2 divisors, whose sum is σ = 27819414698. Its totient is φ = 27819414696.

The previous prime is 27819414629. The next prime is 27819414709. The reversal of 27819414697 is 79641491872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27725247081 + 94167616 = 166509^2 + 9704^2 .

It is a cyclic number.

It is not a de Polignac number, because 27819414697 - 2²⁷ = 27685196969 is a prime.

It is not a weakly prime, because it can be changed into another prime (27819414617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13909707348 + 13909707349.

It is an arithmetic number, because the mean of its divisors is an integer number (13909707349).

Almost surely, 2^27819414697 is an apocalyptic number.

It is an amenable number.

27819414697 is a deficient number, since it is larger than the sum of its proper divisors (1).

27819414697 is an equidigital number, since it uses as much as digits as its factorization.

27819414697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 58.

The spelling of 27819414697 in words is "twenty-seven billion, eight hundred nineteen million, four hundred fourteen thousand, six hundred ninety-seven".