19833849868 has 24 divisors (see below), whose sum is σ = 39694459392. Its totient is φ = 8494487184.

The previous prime is 19833849823. The next prime is 19833849883. The reversal of 19833849868 is 86894833891.

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, 196546 + ... + 279817.

It is an arithmetic number, because the mean of its divisors is an integer number (1653935808).

Almost surely, 2^19833849868 is an apocalyptic number.

It is an amenable number.

19833849868 is an abundant number, since it is smaller than the sum of its proper divisors (19860609524).

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

19833849868 is a wasteful number, since it uses less digits than its factorization.

19833849868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477861 (or 477859 counting only the distinct ones).

The product of its digits is 71663616, while the sum is 67.

The spelling of 19833849868 in words is "nineteen billion, eight hundred thirty-three million, eight hundred forty-nine thousand, eight hundred sixty-eight".