808594563942 has 72 divisors (see below), whose sum is σ = 1929162650688. Its totient is φ = 244588380960.

The previous prime is 808594563893. The next prime is 808594563961. The reversal of 808594563942 is 249365495808.

808594563942 is a `hidden beast` number, since 8 + 0 + 8 + 594 + 5 + 6 + 39 + 4 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 808594563942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 879883 + ... + 1546409.

It is an arithmetic number, because the mean of its divisors is an integer number (26793925704).

Almost surely, 2^808594563942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 808594563942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (964581325344).

808594563942 is an abundant number, since it is smaller than the sum of its proper divisors (1120568086746).

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

808594563942 is a wasteful number, since it uses less digits than its factorization.

808594563942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667114 (or 667100 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 63.

The spelling of 808594563942 in words is "eight hundred eight billion, five hundred ninety-four million, five hundred sixty-three thousand, nine hundred forty-two".