9819997116 has 24 divisors (see below), whose sum is σ = 23008409424. Its totient is φ = 3259749120.

The previous prime is 9819997091. The next prime is 9819997141. The reversal of 9819997116 is 6117999189.

It is an interprime number because it is at equal distance from previous prime (9819997091) and next prime (9819997141).

It is a self number, because there is not a number n which added to its sum of digits gives 9819997116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1694895 + ... + 1700678.

It is an arithmetic number, because the mean of its divisors is an integer number (958683726).

Almost surely, 2^9819997116 is an apocalyptic number.

It is an amenable number.

9819997116 is an abundant number, since it is smaller than the sum of its proper divisors (13188412308).

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

9819997116 is a wasteful number, since it uses less digits than its factorization.

9819997116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395821 (or 3395819 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 60.

The square root of 9819997116 is about 99095.8985831402. The cubic root of 9819997116 is about 2141.4295275784.

The spelling of 9819997116 in words is "nine billion, eight hundred nineteen million, nine hundred ninety-seven thousand, one hundred sixteen".