27557575079 has 2 divisors, whose sum is σ = 27557575080. Its totient is φ = 27557575078.

The previous prime is 27557575027. The next prime is 27557575153. The reversal of 27557575079 is 97057575572.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27557575079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27557575579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13778787539 + 13778787540.

It is an arithmetic number, because the mean of its divisors is an integer number (13778787540).

Almost surely, 2^27557575079 is an apocalyptic number.

27557575079 is a deficient number, since it is larger than the sum of its proper divisors (1).

27557575079 is an equidigital number, since it uses as much as digits as its factorization.

27557575079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27011250, while the sum is 59.

The spelling of 27557575079 in words is "twenty-seven billion, five hundred fifty-seven million, five hundred seventy-five thousand, seventy-nine".