27858435179 has 2 divisors, whose sum is σ = 27858435180. Its totient is φ = 27858435178.

The previous prime is 27858435133. The next prime is 27858435193. The reversal of 27858435179 is 97153485872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27858435179 - 2²⁰ = 27857386603 is a prime.

It is not a weakly prime, because it can be changed into another prime (27858435679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13929217589 + 13929217590.

It is an arithmetic number, because the mean of its divisors is an integer number (13929217590).

Almost surely, 2^27858435179 is an apocalyptic number.

27858435179 is a deficient number, since it is larger than the sum of its proper divisors (1).

27858435179 is an equidigital number, since it uses as much as digits as its factorization.

27858435179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16934400, while the sum is 59.

The spelling of 27858435179 in words is "twenty-seven billion, eight hundred fifty-eight million, four hundred thirty-five thousand, one hundred seventy-nine".