28226880029 has 2 divisors, whose sum is σ = 28226880030. Its totient is φ = 28226880028.

The previous prime is 28226879999. The next prime is 28226880043. The reversal of 28226880029 is 92008862282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26494072900 + 1732807129 = 162770^2 + 41627^2 .

It is a cyclic number.

It is not a de Polignac number, because 28226880029 - 2⁸ = 28226879773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28226880229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14113440014 + 14113440015.

It is an arithmetic number, because the mean of its divisors is an integer number (14113440015).

Almost surely, 2^28226880029 is an apocalyptic number.

It is an amenable number.

28226880029 is a deficient number, since it is larger than the sum of its proper divisors (1).

28226880029 is an equidigital number, since it uses as much as digits as its factorization.

28226880029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 442368, while the sum is 47.

The spelling of 28226880029 in words is "twenty-eight billion, two hundred twenty-six million, eight hundred eighty thousand, twenty-nine".