28714894244 has 12 divisors (see below), whose sum is σ = 50265329100. Its totient is φ = 14353371648.

The previous prime is 28714894207. The next prime is 28714894297. The reversal of 28714894244 is 44249841782.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7138222144 + 21576672100 = 84488^2 + 146890^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002989 + ... + 1031220.

It is an arithmetic number, because the mean of its divisors is an integer number (4188777425).

Almost surely, 2^28714894244 is an apocalyptic number.

It is an amenable number.

28714894244 is a deficient number, since it is larger than the sum of its proper divisors (21550434856).

28714894244 is a wasteful number, since it uses less digits than its factorization.

28714894244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037742 (or 2037740 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 53.

The spelling of 28714894244 in words is "twenty-eight billion, seven hundred fourteen million, eight hundred ninety-four thousand, two hundred forty-four".