99378547736832 has 2016 divisors, whose sum is σ = 391328416104192. Its totient is φ = 24429840039936.

The previous prime is 99378547736827. The next prime is 99378547736857. The reversal of 99378547736832 is 23863774587399.

99378547736832 is a `hidden beast` number, since 9 + 9 + 3 + 7 + 8 + 547 + 7 + 3 + 68 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (2016).

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 30891682488 + ... + 30891685704.

It is an arithmetic number, because the mean of its divisors is an integer number (194111317512).

Almost surely, 2^{99378547736832} 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 99378547736832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195664208052096).

99378547736832 is an abundant number, since it is smaller than the sum of its proper divisors (291949868367360).

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

99378547736832 is a wasteful number, since it uses less digits than its factorization.

99378547736832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395 (or 3366 counting only the distinct ones).

The product of its digits is 11522165760, while the sum is 81.

The spelling of 99378547736832 in words is "ninety-nine trillion, three hundred seventy-eight billion, five hundred forty-seven million, seven hundred thirty-six thousand, eight hundred thirty-two".