27869660443 has 2 divisors, whose sum is σ = 27869660444. Its totient is φ = 27869660442.

The previous prime is 27869660363. The next prime is 27869660461. The reversal of 27869660443 is 34406696872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27869660443 - 2²⁹ = 27332789531 is a prime.

It is not a weakly prime, because it can be changed into another prime (27869600443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13934830221 + 13934830222.

It is an arithmetic number, because the mean of its divisors is an integer number (13934830222).

Almost surely, 2^27869660443 is an apocalyptic number.

27869660443 is a deficient number, since it is larger than the sum of its proper divisors (1).

27869660443 is an equidigital number, since it uses as much as digits as its factorization.

27869660443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 55.

The spelling of 27869660443 in words is "twenty-seven billion, eight hundred sixty-nine million, six hundred sixty thousand, four hundred forty-three".