9898742163 has 8 divisors (see below), whose sum is σ = 13321672128. Its totient is φ = 6537486824.

The previous prime is 9898742159. The next prime is 9898742171. The reversal of 9898742163 is 3612478989.

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

It is a cyclic number.

It is not a de Polignac number, because 9898742163 - 2² = 9898742159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9898742263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15418281 + ... + 15418922.

It is an arithmetic number, because the mean of its divisors is an integer number (1665209016).

Almost surely, 2^9898742163 is an apocalyptic number.

9898742163 is a deficient number, since it is larger than the sum of its proper divisors (3422929965).

9898742163 is a wasteful number, since it uses less digits than its factorization.

9898742163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30837313.

The product of its digits is 5225472, while the sum is 57.

The square root of 9898742163 is about 99492.4226411238. The cubic root of 9898742163 is about 2147.1382269755.

The spelling of 9898742163 in words is "nine billion, eight hundred ninety-eight million, seven hundred forty-two thousand, one hundred sixty-three".