9874799918208 has 256 divisors, whose sum is σ = 30929123808000. Its totient is φ = 3090911477760.

The previous prime is 9874799918183. The next prime is 9874799918227. The reversal of 9874799918208 is 8028199974789.

It is a happy number.

It is a super-5 number, since 5×9874799918208⁵ (a number of 66 digits) contains 55555 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25600698 + ... + 25983558.

It is an arithmetic number, because the mean of its divisors is an integer number (120816889875).

Almost surely, 2^{9874799918208} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9874799918208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15464561904000).

9874799918208 is an abundant number, since it is smaller than the sum of its proper divisors (21054323889792).

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

9874799918208 is a wasteful number, since it uses less digits than its factorization.

9874799918208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383340 (or 383322 counting only the distinct ones).

The product of its (nonzero) digits is 1316818944, while the sum is 81.

The spelling of 9874799918208 in words is "nine trillion, eight hundred seventy-four billion, seven hundred ninety-nine million, nine hundred eighteen thousand, two hundred eight".