28258679798 has 16 divisors (see below), whose sum is σ = 42456196224. Its totient is φ = 14106632640.

The previous prime is 28258679789. The next prime is 28258679881. The reversal of 28258679798 is 89797685282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5223611 + ... + 5229017.

It is an arithmetic number, because the mean of its divisors is an integer number (2653512264).

Almost surely, 2^28258679798 is an apocalyptic number.

28258679798 is a deficient number, since it is larger than the sum of its proper divisors (14197516426).

28258679798 is a wasteful number, since it uses less digits than its factorization.

28258679798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9127.

The product of its digits is 243855360, while the sum is 71.

The spelling of 28258679798 in words is "twenty-eight billion, two hundred fifty-eight million, six hundred seventy-nine thousand, seven hundred ninety-eight".