28080187147 has 2 divisors, whose sum is σ = 28080187148. Its totient is φ = 28080187146.

The previous prime is 28080187141. The next prime is 28080187151. The reversal of 28080187147 is 74178108082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28080187147 - 2³ = 28080187139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28080187097 and 28080187106.

It is not a weakly prime, because it can be changed into another prime (28080187141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14040093573 + 14040093574.

It is an arithmetic number, because the mean of its divisors is an integer number (14040093574).

Almost surely, 2^28080187147 is an apocalyptic number.

28080187147 is a deficient number, since it is larger than the sum of its proper divisors (1).

28080187147 is an equidigital number, since it uses as much as digits as its factorization.

28080187147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200704, while the sum is 46.

The spelling of 28080187147 in words is "twenty-eight billion, eighty million, one hundred eighty-seven thousand, one hundred forty-seven".