99799436430 has 96 divisors (see below), whose sum is σ = 260372664864. Its totient is φ = 26521648128.

The previous prime is 99799436357. The next prime is 99799436431. The reversal of 99799436430 is 3463499799.

99799436430 is a `hidden beast` number, since 99 + 79 + 9 + 43 + 6 + 430 = 666.

99799436430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×99799436430² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99799436431) 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 47 ways as a sum of consecutive naturals, for example, 60228162 + ... + 60229818.

It is an arithmetic number, because the mean of its divisors is an integer number (2712215259).

Almost surely, 2^99799436430 is an apocalyptic number.

99799436430 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

99799436430 is the 257940-th pentagonal number.

99799436430 is an abundant number, since it is smaller than the sum of its proper divisors (160573228434).

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

99799436430 is a wasteful number, since it uses less digits than its factorization.

99799436430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570 (or 3567 counting only the distinct ones).

The product of its (nonzero) digits is 39680928, while the sum is 63.

The spelling of 99799436430 in words is "ninety-nine billion, seven hundred ninety-nine million, four hundred thirty-six thousand, four hundred thirty".