99978744096 has 384 divisors, whose sum is σ = 372024576000. Its totient is φ = 25363860480.

The previous prime is 99978744077. The next prime is 99978744109. The reversal of 99978744096 is 69044787999.

99978744096 is a `hidden beast` number, since 9 + 9 + 97 + 8 + 7 + 440 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2843230 + ... + 2878178.

It is an arithmetic number, because the mean of its divisors is an integer number (968814000).

Almost surely, 2^99978744096 is an apocalyptic number.

99978744096 is a gapful number since it is divisible by the number (96) 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 99978744096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186012288000).

99978744096 is an abundant number, since it is smaller than the sum of its proper divisors (272045831904).

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

99978744096 is a wasteful number, since it uses less digits than its factorization.

99978744096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35029 (or 35015 counting only the distinct ones).

The product of its (nonzero) digits is 246903552, while the sum is 72.

The spelling of 99978744096 in words is "ninety-nine billion, nine hundred seventy-eight million, seven hundred forty-four thousand, ninety-six".