99376434636 has 12 divisors (see below), whose sum is σ = 231878347512. Its totient is φ = 33125478208.

The previous prime is 99376434623. The next prime is 99376434637. The reversal of 99376434636 is 63643467399.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 99376434636.

It is not an unprimeable number, because it can be changed into a prime (99376434637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4140684765 + ... + 4140684788.

It is an arithmetic number, because the mean of its divisors is an integer number (19323195626).

Almost surely, 2^99376434636 is an apocalyptic number.

It is an amenable number.

99376434636 is an abundant number, since it is smaller than the sum of its proper divisors (132501912876).

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

99376434636 is a wasteful number, since it uses less digits than its factorization.

99376434636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8281369560 (or 8281369558 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 60.

The spelling of 99376434636 in words is "ninety-nine billion, three hundred seventy-six million, four hundred thirty-four thousand, six hundred thirty-six".