213027801709 has 2 divisors, whose sum is σ = 213027801710. Its totient is φ = 213027801708.

The previous prime is 213027801643. The next prime is 213027801769. The reversal of 213027801709 is 907108720312.

It is a happy number.

213027801709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207801957609 + 5225844100 = 455853^2 + 72290^2 .

It is a cyclic number.

It is not a de Polignac number, because 213027801709 - 2¹¹ = 213027799661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213027801769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106513900854 + 106513900855.

It is an arithmetic number, because the mean of its divisors is an integer number (106513900855).

Almost surely, 2^213027801709 is an apocalyptic number.

It is an amenable number.

213027801709 is a deficient number, since it is larger than the sum of its proper divisors (1).

213027801709 is an equidigital number, since it uses as much as digits as its factorization.

213027801709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 40.

The spelling of 213027801709 in words is "two hundred thirteen billion, twenty-seven million, eight hundred one thousand, seven hundred nine".