28322724139 has 2 divisors, whose sum is σ = 28322724140. Its totient is φ = 28322724138.

The previous prime is 28322724137. The next prime is 28322724173. The reversal of 28322724139 is 93142722382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28322724139 - 2¹ = 28322724137 is a prime.

Together with 28322724137, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 28322724095 and 28322724104.

It is not a weakly prime, because it can be changed into another prime (28322724137) 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, 14161362069 + 14161362070.

It is an arithmetic number, because the mean of its divisors is an integer number (14161362070).

Almost surely, 2^28322724139 is an apocalyptic number.

28322724139 is a deficient number, since it is larger than the sum of its proper divisors (1).

28322724139 is an equidigital number, since it uses as much as digits as its factorization.

28322724139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 43.

The spelling of 28322724139 in words is "twenty-eight billion, three hundred twenty-two million, seven hundred twenty-four thousand, one hundred thirty-nine".