204515035843 has 2 divisors, whose sum is σ = 204515035844. Its totient is φ = 204515035842.

The previous prime is 204515035831. The next prime is 204515035847. The reversal of 204515035843 is 348530515402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204515035843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204515035796 and 204515035805.

It is not a weakly prime, because it can be changed into another prime (204515035847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102257517921 + 102257517922.

It is an arithmetic number, because the mean of its divisors is an integer number (102257517922).

Almost surely, 2^204515035843 is an apocalyptic number.

204515035843 is a deficient number, since it is larger than the sum of its proper divisors (1).

204515035843 is an equidigital number, since it uses as much as digits as its factorization.

204515035843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 204515035843 in words is "two hundred four billion, five hundred fifteen million, thirty-five thousand, eight hundred forty-three".