204233777513 has 2 divisors, whose sum is σ = 204233777514. Its totient is φ = 204233777512.

The previous prime is 204233777497. The next prime is 204233777533. The reversal of 204233777513 is 315777332402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177062540944 + 27171236569 = 420788^2 + 164837^2 .

It is a cyclic number.

It is not a de Polignac number, because 204233777513 - 2⁴ = 204233777497 is a prime.

It is a super-2 number, since 2×204233777513² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (204233777533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102116888756 + 102116888757.

It is an arithmetic number, because the mean of its divisors is an integer number (102116888757).

Almost surely, 2^204233777513 is an apocalyptic number.

It is an amenable number.

204233777513 is a deficient number, since it is larger than the sum of its proper divisors (1).

204233777513 is an equidigital number, since it uses as much as digits as its factorization.

204233777513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740880, while the sum is 44.

The spelling of 204233777513 in words is "two hundred four billion, two hundred thirty-three million, seven hundred seventy-seven thousand, five hundred thirteen".