99983219728 has 120 divisors (see below), whose sum is σ = 234667212480. Its totient is φ = 41096966400.

The previous prime is 99983219717. The next prime is 99983219741. The reversal of 99983219728 is 82791238999.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3418575 + ... + 3447697.

It is an arithmetic number, because the mean of its divisors is an integer number (1955560104).

Almost surely, 2^99983219728 is an apocalyptic number.

99983219728 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99983219728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117333606240).

99983219728 is an abundant number, since it is smaller than the sum of its proper divisors (134683992752).

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

99983219728 is a wasteful number, since it uses less digits than its factorization.

99983219728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29325 (or 29312 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 67.

The spelling of 99983219728 in words is "ninety-nine billion, nine hundred eighty-three million, two hundred nineteen thousand, seven hundred twenty-eight".