204432421499 has 2 divisors, whose sum is σ = 204432421500. Its totient is φ = 204432421498.

The previous prime is 204432421321. The next prime is 204432421541. The reversal of 204432421499 is 994124234402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204432421499 - 2³² = 200137454203 is a prime.

It is a super-2 number, since 2×204432421499² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (204432423499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102216210749 + 102216210750.

It is an arithmetic number, because the mean of its divisors is an integer number (102216210750).

Almost surely, 2^204432421499 is an apocalyptic number.

204432421499 is a deficient number, since it is larger than the sum of its proper divisors (1).

204432421499 is an equidigital number, since it uses as much as digits as its factorization.

204432421499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 204432421499 in words is "two hundred four billion, four hundred thirty-two million, four hundred twenty-one thousand, four hundred ninety-nine".