199434133899 has 96 divisors (see below), whose sum is σ = 397235564544. Its totient is φ = 93047927040.

The previous prime is 199434133861. The next prime is 199434133909. The reversal of 199434133899 is 998331434991.

199434133899 is a `hidden beast` number, since 1 + 99 + 43 + 413 + 3 + 8 + 99 = 666.

It is not a de Polignac number, because 199434133899 - 2¹³ = 199434125707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (199434133819) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 34182 + ... + 632484.

It is an arithmetic number, because the mean of its divisors is an integer number (4137870464).

Almost surely, 2^199434133899 is an apocalyptic number.

199434133899 is a deficient number, since it is larger than the sum of its proper divisors (197801430645).

199434133899 is a wasteful number, since it uses less digits than its factorization.

199434133899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598377 (or 598374 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 63.

It can be divided in two parts, 199434 and 133899, that added together give a palindrome (333333).

The spelling of 199434133899 in words is "one hundred ninety-nine billion, four hundred thirty-four million, one hundred thirty-three thousand, eight hundred ninety-nine".