87178895179 has 2 divisors, whose sum is σ = 87178895180. Its totient is φ = 87178895178.

The previous prime is 87178895161. The next prime is 87178895189. The reversal of 87178895179 is 97159887178.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87178895179 is a prime.

It is not a weakly prime, because it can be changed into another prime (87178895129) 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, 43589447589 + 43589447590.

It is an arithmetic number, because the mean of its divisors is an integer number (43589447590).

Almost surely, 2^87178895179 is an apocalyptic number.

87178895179 is a deficient number, since it is larger than the sum of its proper divisors (1).

87178895179 is an equidigital number, since it uses as much as digits as its factorization.

87178895179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71124480, while the sum is 70.

The spelling of 87178895179 in words is "eighty-seven billion, one hundred seventy-eight million, eight hundred ninety-five thousand, one hundred seventy-nine".