28805979498 has 16 divisors (see below), whose sum is σ = 57930259296. Its totient is φ = 9548943120.

The previous prime is 28805979497. The next prime is 28805979509. The reversal of 28805979498 is 89497950882.

It is not an unprimeable number, because it can be changed into a prime (28805979497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13261336 + ... + 13263507.

It is an arithmetic number, because the mean of its divisors is an integer number (3620641206).

Almost surely, 2^28805979498 is an apocalyptic number.

28805979498 is an abundant number, since it is smaller than the sum of its proper divisors (29124279798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28805979498 is a wasteful number, since it uses less digits than its factorization.

28805979498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26525029.

The product of its (nonzero) digits is 104509440, while the sum is 69.

The spelling of 28805979498 in words is "twenty-eight billion, eight hundred five million, nine hundred seventy-nine thousand, four hundred ninety-eight".