204143053979 has 2 divisors, whose sum is σ = 204143053980. Its totient is φ = 204143053978.

The previous prime is 204143053967. The next prime is 204143054029. The reversal of 204143053979 is 979350341402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204143053979 - 2¹⁶ = 204142988443 is a prime.

It is not a weakly prime, because it can be changed into another prime (204143053909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102071526989 + 102071526990.

It is an arithmetic number, because the mean of its divisors is an integer number (102071526990).

Almost surely, 2^204143053979 is an apocalyptic number.

204143053979 is a deficient number, since it is larger than the sum of its proper divisors (1).

204143053979 is an equidigital number, since it uses as much as digits as its factorization.

204143053979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 204143053979 in words is "two hundred four billion, one hundred forty-three million, fifty-three thousand, nine hundred seventy-nine".