28008680826 has 16 divisors (see below), whose sum is σ = 64019841984. Its totient is φ = 8002480224.

The previous prime is 28008680789. The next prime is 28008680851. The reversal of 28008680826 is 62808680082.

28008680826 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×28008680826² (a number of 22 digits) contains 22 as substring.

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, 333436635 + ... + 333436718.

It is an arithmetic number, because the mean of its divisors is an integer number (4001240124).

Almost surely, 2^28008680826 is an apocalyptic number.

28008680826 is an abundant number, since it is smaller than the sum of its proper divisors (36011161158).

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

28008680826 is a wasteful number, since it uses less digits than its factorization.

28008680826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666873365.

The product of its (nonzero) digits is 589824, while the sum is 48.

The spelling of 28008680826 in words is "twenty-eight billion, eight million, six hundred eighty thousand, eight hundred twenty-six".