27664021283 has 2 divisors, whose sum is σ = 27664021284. Its totient is φ = 27664021282.

The previous prime is 27664021271. The next prime is 27664021291. The reversal of 27664021283 is 38212046672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27664021283 - 2⁴ = 27664021267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27664021283.

It is not a weakly prime, because it can be changed into another prime (27664020283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13832010641 + 13832010642.

It is an arithmetic number, because the mean of its divisors is an integer number (13832010642).

Almost surely, 2^27664021283 is an apocalyptic number.

27664021283 is a deficient number, since it is larger than the sum of its proper divisors (1).

27664021283 is an equidigital number, since it uses as much as digits as its factorization.

27664021283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 27664021283 in words is "twenty-seven billion, six hundred sixty-four million, twenty-one thousand, two hundred eighty-three".