28340587088 has 60 divisors (see below), whose sum is σ = 60481441440. Its totient is φ = 12855205440.

The previous prime is 28340587061. The next prime is 28340587091. The reversal of 28340587088 is 88078504382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 927803 + ... + 957861.

It is an arithmetic number, because the mean of its divisors is an integer number (1008024024).

Almost surely, 2^28340587088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28340587088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30240720720).

28340587088 is an abundant number, since it is smaller than the sum of its proper divisors (32140854352).

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

28340587088 is a wasteful number, since it uses less digits than its factorization.

28340587088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30576 (or 30559 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 53.

The spelling of 28340587088 in words is "twenty-eight billion, three hundred forty million, five hundred eighty-seven thousand, eighty-eight".