28078722359 has 2 divisors, whose sum is σ = 28078722360. Its totient is φ = 28078722358.

The previous prime is 28078722341. The next prime is 28078722361. The reversal of 28078722359 is 95322787082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28078722359 - 2²⁴ = 28061945143 is a prime.

Together with 28078722361, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28078722359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28078782359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14039361179 + 14039361180.

It is an arithmetic number, because the mean of its divisors is an integer number (14039361180).

Almost surely, 2^28078722359 is an apocalyptic number.

28078722359 is a deficient number, since it is larger than the sum of its proper divisors (1).

28078722359 is an equidigital number, since it uses as much as digits as its factorization.

28078722359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 28078722359 in words is "twenty-eight billion, seventy-eight million, seven hundred twenty-two thousand, three hundred fifty-nine".