84198661828 has 24 divisors (see below), whose sum is σ = 152552695680. Its totient is φ = 40614540960.

The previous prime is 84198661801. The next prime is 84198661849. The reversal of 84198661828 is 82816689148.

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, 152026 + ... + 437617.

It is an arithmetic number, because the mean of its divisors is an integer number (6356362320).

Almost surely, 2^84198661828 is an apocalyptic number.

It is an amenable number.

84198661828 is a deficient number, since it is larger than the sum of its proper divisors (68354033852).

84198661828 is a wasteful number, since it uses less digits than its factorization.

84198661828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590907 (or 590905 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 61.

The spelling of 84198661828 in words is "eighty-four billion, one hundred ninety-eight million, six hundred sixty-one thousand, eight hundred twenty-eight".