28080042427 has 2 divisors, whose sum is σ = 28080042428. Its totient is φ = 28080042426.

The previous prime is 28080042409. The next prime is 28080042461. The reversal of 28080042427 is 72424008082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28080042427 - 2¹¹ = 28080040379 is a prime.

It is not a weakly prime, because it can be changed into another prime (28080042127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14040021213 + 14040021214.

It is an arithmetic number, because the mean of its divisors is an integer number (14040021214).

Almost surely, 2^28080042427 is an apocalyptic number.

28080042427 is a deficient number, since it is larger than the sum of its proper divisors (1).

28080042427 is an equidigital number, since it uses as much as digits as its factorization.

28080042427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57344, while the sum is 37.

The spelling of 28080042427 in words is "twenty-eight billion, eighty million, forty-two thousand, four hundred twenty-seven".