204034079876789 has 2 divisors, whose sum is σ = 204034079876790. Its totient is φ = 204034079876788.

The previous prime is 204034079876701. The next prime is 204034079876839. The reversal of 204034079876789 is 987678970430402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169923165269764 + 34110914607025 = 13035458^2 + 5840455^2 .

It is a cyclic number.

It is not a de Polignac number, because 204034079876789 - 2⁴⁰ = 202934568249013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204034079876689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102017039938394 + 102017039938395.

It is an arithmetic number, because the mean of its divisors is an integer number (102017039938395).

Almost surely, 2^{204034079876789} is an apocalyptic number.

It is an amenable number.

204034079876789 is a deficient number, since it is larger than the sum of its proper divisors (1).

204034079876789 is an equidigital number, since it uses as much as digits as its factorization.

204034079876789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024192512, while the sum is 74.

The spelling of 204034079876789 in words is "two hundred four trillion, thirty-four billion, seventy-nine million, eight hundred seventy-six thousand, seven hundred eighty-nine".