28059398563 has 6 divisors (see below), whose sum is σ = 32640524916. Its totient is φ = 24050913012.

The previous prime is 28059398537. The next prime is 28059398567. The reversal of 28059398563 is 36589395082.

It is not a de Polignac number, because 28059398563 - 2¹³ = 28059390371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28059398498 and 28059398507.

It is not an unprimeable number, because it can be changed into a prime (28059398567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 286320345 + ... + 286320442.

It is an arithmetic number, because the mean of its divisors is an integer number (5440087486).

Almost surely, 2^28059398563 is an apocalyptic number.

28059398563 is a deficient number, since it is larger than the sum of its proper divisors (4581126353).

28059398563 is an equidigital number, since it uses as much as digits as its factorization.

28059398563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572640801 (or 572640794 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 58.

The spelling of 28059398563 in words is "twenty-eight billion, fifty-nine million, three hundred ninety-eight thousand, five hundred sixty-three".