28078542419 has 2 divisors, whose sum is σ = 28078542420. Its totient is φ = 28078542418.

The previous prime is 28078542367. The next prime is 28078542421. The reversal of 28078542419 is 91424587082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28078542419 - 2²⁴ = 28061765203 is a prime.

It is a super-2 number, since 2×28078542419² (a number of 22 digits) contains 22 as substring.

Together with 28078542421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28078542469) 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, 14039271209 + 14039271210.

It is an arithmetic number, because the mean of its divisors is an integer number (14039271210).

Almost surely, 2^28078542419 is an apocalyptic number.

28078542419 is a deficient number, since it is larger than the sum of its proper divisors (1).

28078542419 is an equidigital number, since it uses as much as digits as its factorization.

28078542419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 28078542419 in words is "twenty-eight billion, seventy-eight million, five hundred forty-two thousand, four hundred nineteen".