99876534210 has 48 divisors (see below), whose sum is σ = 259695858240. Its totient is φ = 26632012320.

The previous prime is 99876534187. The next prime is 99876534223. The reversal of 99876534210 is 1243567899.

99876534210 is a `hidden beast` number, since 9 + 9 + 87 + 6 + 534 + 21 + 0 = 666.

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, 1980205 + ... + 2030015.

It is an arithmetic number, because the mean of its divisors is an integer number (5410330380).

It is a 2-persistent number, because it is pandigital, and so is 2⋅99876534210 = 199753068420, but 3⋅99876534210 = 299629602630 is not.

Almost surely, 2^99876534210 is an apocalyptic number.

99876534210 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

99876534210 is an abundant number, since it is smaller than the sum of its proper divisors (159819324030).

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

99876534210 is a wasteful number, since it uses less digits than its factorization.

99876534210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72103 (or 72100 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 99876534210 in words is "ninety-nine billion, eight hundred seventy-six million, five hundred thirty-four thousand, two hundred ten".