9998611894 has 8 divisors (see below), whose sum is σ = 15346706760. Its totient is φ = 4883042976.

The previous prime is 9998611891. The next prime is 9998611907. The reversal of 9998611894 is 4981168999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998611891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58131379 + ... + 58131550.

It is an arithmetic number, because the mean of its divisors is an integer number (1918338345).

Almost surely, 2^9998611894 is an apocalyptic number.

9998611894 is a deficient number, since it is larger than the sum of its proper divisors (5348094866).

9998611894 is a wasteful number, since it uses less digits than its factorization.

9998611894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116262974.

The product of its digits is 10077696, while the sum is 64.

The square root of 9998611894 is about 99993.0592291285. The cubic root of 9998611894 is about 2154.3349992950.

The spelling of 9998611894 in words is "nine billion, nine hundred ninety-eight million, six hundred eleven thousand, eight hundred ninety-four".