99836782038 has 256 divisors, whose sum is σ = 263053639680. Its totient is φ = 27482716800.

The previous prime is 99836782027. The next prime is 99836782051. The reversal of 99836782038 is 83028763899.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

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 127 ways as a sum of consecutive naturals, for example, 301621533 + ... + 301621863.

It is an arithmetic number, because the mean of its divisors is an integer number (1027553280).

Almost surely, 2^99836782038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99836782038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131526819840).

99836782038 is an abundant number, since it is smaller than the sum of its proper divisors (163216857642).

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

99836782038 is a wasteful number, since it uses less digits than its factorization.

99836782038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 99836782038 in words is "ninety-nine billion, eight hundred thirty-six million, seven hundred eighty-two thousand, thirty-eight".