9994573844 has 12 divisors (see below), whose sum is σ = 17493569184. Its totient is φ = 4996411224.

The previous prime is 9994573777. The next prime is 9994573861. The reversal of 9994573844 is 4483754999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192902 + ... + 239165.

It is an arithmetic number, because the mean of its divisors is an integer number (1457797432).

Almost surely, 2^9994573844 is an apocalyptic number.

It is an amenable number.

9994573844 is a deficient number, since it is larger than the sum of its proper divisors (7498995340).

9994573844 is a wasteful number, since it uses less digits than its factorization.

9994573844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437854 (or 437852 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 62.

The square root of 9994573844 is about 99972.8655386050. The cubic root of 9994573844 is about 2154.0449429051.

The spelling of 9994573844 in words is "nine billion, nine hundred ninety-four million, five hundred seventy-three thousand, eight hundred forty-four".