99988764100 has 81 divisors (see below), whose sum is σ = 219818643597. Its totient is φ = 39478186080.

The previous prime is 99988764079. The next prime is 99988764107. The reversal of 99988764100 is 146788999.

The square root of 99988764100 is 316210.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 35995955076 + 63992809024 = 189726^2 + 252968^2 .

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (99988764107) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 325696147 + ... + 325696453.

Almost surely, 2^99988764100 is an apocalyptic number.

99988764100 is the 316210-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99988764100

99988764100 is an abundant number, since it is smaller than the sum of its proper divisors (119829879497).

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

99988764100 is a wasteful number, since it uses less digits than its factorization.

99988764100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 61.

The spelling of 99988764100 in words is "ninety-nine billion, nine hundred eighty-eight million, seven hundred sixty-four thousand, one hundred".