28232859643 has 2 divisors, whose sum is σ = 28232859644. Its totient is φ = 28232859642.

The previous prime is 28232859631. The next prime is 28232859659. The reversal of 28232859643 is 34695823282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28232859643 - 2³³ = 19642925051 is a prime.

It is not a weakly prime, because it can be changed into another prime (28232859043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14116429821 + 14116429822.

It is an arithmetic number, because the mean of its divisors is an integer number (14116429822).

Almost surely, 2^28232859643 is an apocalyptic number.

28232859643 is a deficient number, since it is larger than the sum of its proper divisors (1).

28232859643 is an equidigital number, since it uses as much as digits as its factorization.

28232859643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4976640, while the sum is 52.

The spelling of 28232859643 in words is "twenty-eight billion, two hundred thirty-two million, eight hundred fifty-nine thousand, six hundred forty-three".