28341778886 has 16 divisors (see below), whose sum is σ = 43350402480. Its totient is φ = 13893158880.

The previous prime is 28341778873. The next prime is 28341778903. The reversal of 28341778886 is 68887714382.

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, 340901 + ... + 415808.

It is an arithmetic number, because the mean of its divisors is an integer number (2709400155).

Almost surely, 2^28341778886 is an apocalyptic number.

28341778886 is a deficient number, since it is larger than the sum of its proper divisors (15008623594).

28341778886 is a wasteful number, since it uses less digits than its factorization.

28341778886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757079.

The product of its digits is 28901376, while the sum is 62.

The spelling of 28341778886 in words is "twenty-eight billion, three hundred forty-one million, seven hundred seventy-eight thousand, eight hundred eighty-six".