28833374809 has 2 divisors, whose sum is σ = 28833374810. Its totient is φ = 28833374808.

The previous prime is 28833374761. The next prime is 28833374827. The reversal of 28833374809 is 90847333882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24016320784 + 4817054025 = 154972^2 + 69405^2 .

It is a cyclic number.

It is not a de Polignac number, because 28833374809 - 2¹¹ = 28833372761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28833374809.

It is not a weakly prime, because it can be changed into another prime (28833374849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14416687404 + 14416687405.

It is an arithmetic number, because the mean of its divisors is an integer number (14416687405).

Almost surely, 2^28833374809 is an apocalyptic number.

It is an amenable number.

28833374809 is a deficient number, since it is larger than the sum of its proper divisors (1).

28833374809 is an equidigital number, since it uses as much as digits as its factorization.

28833374809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 28833374809 in words is "twenty-eight billion, eight hundred thirty-three million, three hundred seventy-four thousand, eight hundred nine".