204194500043 has 16 divisors (see below), whose sum is σ = 227382681600. Its totient is φ = 182379770496.

The previous prime is 204194500001. The next prime is 204194500051. The reversal of 204194500043 is 340005491402.

It is a cyclic number.

It is not a de Polignac number, because 204194500043 - 2⁸ = 204194499787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204194499982 and 204194500009.

It is not an unprimeable number, because it can be changed into a prime (204194590043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2006393 + ... + 2105706.

It is an arithmetic number, because the mean of its divisors is an integer number (14211417600).

Almost surely, 2^204194500043 is an apocalyptic number.

204194500043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

204194500043 is a deficient number, since it is larger than the sum of its proper divisors (23188181557).

204194500043 is a wasteful number, since it uses less digits than its factorization.

204194500043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112266.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 204194500043 its reverse (340005491402), we get a palindrome (544199991445).

The spelling of 204194500043 in words is "two hundred four billion, one hundred ninety-four million, five hundred thousand, forty-three".