9898979468 has 24 divisors (see below), whose sum is σ = 19800211200. Its totient is φ = 4241937168.

The previous prime is 9898979449. The next prime is 9898979473. The reversal of 9898979468 is 8649798989.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349793 + ... + 377031.

It is an arithmetic number, because the mean of its divisors is an integer number (825008800).

Almost surely, 2^9898979468 is an apocalyptic number.

It is an amenable number.

9898979468 is an abundant number, since it is smaller than the sum of its proper divisors (9901231732).

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

9898979468 is a wasteful number, since it uses less digits than its factorization.

9898979468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40229 (or 40227 counting only the distinct ones).

The product of its digits is 564350976, while the sum is 77.

The square root of 9898979468 is about 99493.6152122336. The cubic root of 9898979468 is about 2147.1553847974.

The spelling of 9898979468 in words is "nine billion, eight hundred ninety-eight million, nine hundred seventy-nine thousand, four hundred sixty-eight".