9798954873894 has 12 divisors (see below), whose sum is σ = 21231068893476. Its totient is φ = 3266318291292.

The previous prime is 9798954873871. The next prime is 9798954873947. The reversal of 9798954873894 is 4983784598979.

It is a happy number.

9798954873894 is a `hidden beast` number, since 9 + 7 + 9 + 8 + 9 + 5 + 487 + 38 + 94 = 666.

It is a super-2 number, since 2×9798954873894² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 272193190924 + ... + 272193190959.

It is an arithmetic number, because the mean of its divisors is an integer number (1769255741123).

Almost surely, 2^{9798954873894} is an apocalyptic number.

9798954873894 is an abundant number, since it is smaller than the sum of its proper divisors (11432114019582).

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

9798954873894 is a wasteful number, since it uses less digits than its factorization.

9798954873894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544386381891 (or 544386381888 counting only the distinct ones).

The product of its digits is 39504568320, while the sum is 90.

The spelling of 9798954873894 in words is "nine trillion, seven hundred ninety-eight billion, nine hundred fifty-four million, eight hundred seventy-three thousand, eight hundred ninety-four".