840000983868 has 18 divisors (see below), whose sum is σ = 2123335820424. Its totient is φ = 280000327944.

The previous prime is 840000983867. The next prime is 840000983879. The reversal of 840000983868 is 868389000048.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840000983867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11666680296 + ... + 11666680367.

Almost surely, 2^840000983868 is an apocalyptic number.

It is an amenable number.

840000983868 is an abundant number, since it is smaller than the sum of its proper divisors (1283334836556).

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

840000983868 is a wasteful number, since it uses less digits than its factorization.

840000983868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23333360673 (or 23333360668 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 840000983868 in words is "eight hundred forty billion, nine hundred eighty-three thousand, eight hundred sixty-eight".