99146869209 has 32 divisors (see below), whose sum is σ = 155560608000. Its totient is φ = 62195357952.

The previous prime is 99146869207. The next prime is 99146869247. The reversal of 99146869209 is 90296864199.

99146869209 is a `hidden beast` number, since 9 + 91 + 468 + 69 + 20 + 9 = 666.

It is not a de Polignac number, because 99146869209 - 2¹ = 99146869207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99146869207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2161687 + ... + 2207075.

It is an arithmetic number, because the mean of its divisors is an integer number (4861269000).

Almost surely, 2^99146869209 is an apocalyptic number.

It is an amenable number.

99146869209 is a deficient number, since it is larger than the sum of its proper divisors (56413738791).

99146869209 is a wasteful number, since it uses less digits than its factorization.

99146869209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50174 (or 50168 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 63.

The spelling of 99146869209 in words is "ninety-nine billion, one hundred forty-six million, eight hundred sixty-nine thousand, two hundred nine".