180055427779 has 2 divisors, whose sum is σ = 180055427780. Its totient is φ = 180055427778.

The previous prime is 180055427753. The next prime is 180055427791. The reversal of 180055427779 is 977724550081.

180055427779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 180055427779 - 2²⁵ = 180021873347 is a prime.

It is not a weakly prime, because it can be changed into another prime (180055427579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90027713889 + 90027713890.

It is an arithmetic number, because the mean of its divisors is an integer number (90027713890).

Almost surely, 2^180055427779 is an apocalyptic number.

180055427779 is a deficient number, since it is larger than the sum of its proper divisors (1).

180055427779 is an equidigital number, since it uses as much as digits as its factorization.

180055427779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4939200, while the sum is 55.

The spelling of 180055427779 in words is "one hundred eighty billion, fifty-five million, four hundred twenty-seven thousand, seven hundred seventy-nine".