28470228959 has 2 divisors, whose sum is σ = 28470228960. Its totient is φ = 28470228958.

The previous prime is 28470228953. The next prime is 28470228979. The reversal of 28470228959 is 95982207482.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28470228959 - 2²⁴ = 28453451743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28470228953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14235114479 + 14235114480.

It is an arithmetic number, because the mean of its divisors is an integer number (14235114480).

Almost surely, 2^28470228959 is an apocalyptic number.

28470228959 is a deficient number, since it is larger than the sum of its proper divisors (1).

28470228959 is an equidigital number, since it uses as much as digits as its factorization.

28470228959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 28470228959 in words is "twenty-eight billion, four hundred seventy million, two hundred twenty-eight thousand, nine hundred fifty-nine".