28942140179 has 2 divisors, whose sum is σ = 28942140180. Its totient is φ = 28942140178.

The previous prime is 28942140173. The next prime is 28942140197. The reversal of 28942140179 is 97104124982.

Together with next prime (28942140197) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28942140179 is a prime.

It is not a weakly prime, because it can be changed into another prime (28942140173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14471070089 + 14471070090.

It is an arithmetic number, because the mean of its divisors is an integer number (14471070090).

Almost surely, 2^28942140179 is an apocalyptic number.

28942140179 is a deficient number, since it is larger than the sum of its proper divisors (1).

28942140179 is an equidigital number, since it uses as much as digits as its factorization.

28942140179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 28942140179 in words is "twenty-eight billion, nine hundred forty-two million, one hundred forty thousand, one hundred seventy-nine".