28206888403 has 2 divisors, whose sum is σ = 28206888404. Its totient is φ = 28206888402.

The previous prime is 28206888383. The next prime is 28206888467. The reversal of 28206888403 is 30488860282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28206888403 - 2²⁵ = 28173333971 is a prime.

It is not a weakly prime, because it can be changed into another prime (28206888473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14103444201 + 14103444202.

It is an arithmetic number, because the mean of its divisors is an integer number (14103444202).

Almost surely, 2^28206888403 is an apocalyptic number.

28206888403 is a deficient number, since it is larger than the sum of its proper divisors (1).

28206888403 is an equidigital number, since it uses as much as digits as its factorization.

28206888403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1179648, while the sum is 49.

The spelling of 28206888403 in words is "twenty-eight billion, two hundred six million, eight hundred eighty-eight thousand, four hundred three".