99876523140 has 72 divisors (see below), whose sum is σ = 302984561880. Its totient is φ = 26631473664.

The previous prime is 99876523133. The next prime is 99876523177. The reversal of 99876523140 is 4132567899.

99876523140 is a `hidden beast` number, since 9 + 9 + 8 + 76 + 523 + 1 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 298116 + 99876225024 = 546^2 + 316032^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3967072 + ... + 3992168.

It is an arithmetic number, because the mean of its divisors is an integer number (4208118915).

It is a 2-persistent number, because it is pandigital, and so is 2⋅99876523140 = 199753046280, but 3⋅99876523140 = 299629569420 is not.

Almost surely, 2^99876523140 is an apocalyptic number.

99876523140 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

99876523140 is an abundant number, since it is smaller than the sum of its proper divisors (203108038740).

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

99876523140 is a wasteful number, since it uses less digits than its factorization.

99876523140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47221 (or 47216 counting only the distinct ones).

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

The spelling of 99876523140 in words is "ninety-nine billion, eight hundred seventy-six million, five hundred twenty-three thousand, one hundred forty".