1768736213 has 2 divisors, whose sum is σ = 1768736214. Its totient is φ = 1768736212.

The previous prime is 1768736159. The next prime is 1768736227. The reversal of 1768736213 is 3126378671.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1385477284 + 383258929 = 37222^2 + 19577^2 .

It is a cyclic number.

It is not a de Polignac number, because 1768736213 - 2¹² = 1768732117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1768736273) 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, 884368106 + 884368107.

It is an arithmetic number, because the mean of its divisors is an integer number (884368107).

Almost surely, 2^1768736213 is an apocalyptic number.

It is an amenable number.

1768736213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1768736213 is an equidigital number, since it uses as much as digits as its factorization.

1768736213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The square root of 1768736213 is about 42056.3456924160. The cubic root of 1768736213 is about 1209.3565353634.

The spelling of 1768736213 in words is "one billion, seven hundred sixty-eight million, seven hundred thirty-six thousand, two hundred thirteen".