99809988286 has 16 divisors (see below), whose sum is σ = 154893795840. Its totient is φ = 48179083680.

The previous prime is 99809988283. The next prime is 99809988323. The reversal of 99809988286 is 68288990899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99809988281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501340 + ... + 671536.

It is an arithmetic number, because the mean of its divisors is an integer number (9680862240).

Almost surely, 2^99809988286 is an apocalyptic number.

99809988286 is a deficient number, since it is larger than the sum of its proper divisors (55083807554).

99809988286 is a wasteful number, since it uses less digits than its factorization.

99809988286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180339.

The product of its (nonzero) digits is 322486272, while the sum is 76.

The spelling of 99809988286 in words is "ninety-nine billion, eight hundred nine million, nine hundred eighty-eight thousand, two hundred eighty-six".