28028813459 has 2 divisors, whose sum is σ = 28028813460. Its totient is φ = 28028813458.

The previous prime is 28028813441. The next prime is 28028813473. The reversal of 28028813459 is 95431882082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28028813459 - 2⁸ = 28028813203 is a prime.

It is a super-2 number, since 2×28028813459² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28028813419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14014406729 + 14014406730.

It is an arithmetic number, because the mean of its divisors is an integer number (14014406730).

Almost surely, 2^28028813459 is an apocalyptic number.

28028813459 is a deficient number, since it is larger than the sum of its proper divisors (1).

28028813459 is an equidigital number, since it uses as much as digits as its factorization.

28028813459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 28028813459 in words is "twenty-eight billion, twenty-eight million, eight hundred thirteen thousand, four hundred fifty-nine".