99419980800 has 792 divisors, whose sum is σ = 395849842560. Its totient is φ = 21916876800.

The previous prime is 99419980789. The next prime is 99419980801. The reversal of 99419980800 is 808991499.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (99419980801) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 109132345 + ... + 109133255.

Almost surely, 2^99419980800 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 99419980800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197924921280).

99419980800 is an abundant number, since it is smaller than the sum of its proper divisors (296429861760).

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

99419980800 is a wasteful number, since it uses less digits than its factorization.

99419980800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987 (or 957 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 57.

The spelling of 99419980800 in words is "ninety-nine billion, four hundred nineteen million, nine hundred eighty thousand, eight hundred".