86809082831213 has 2 divisors, whose sum is σ = 86809082831214. Its totient is φ = 86809082831212.

The previous prime is 86809082831203. The next prime is 86809082831257. The reversal of 86809082831213 is 31213828090868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86768237612809 + 40845218404 = 9314947^2 + 202102^2 .

It is a cyclic number.

It is not a de Polignac number, because 86809082831213 - 2²⁶ = 86809015722349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86809082831203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43404541415606 + 43404541415607.

It is an arithmetic number, because the mean of its divisors is an integer number (43404541415607).

Almost surely, 2^{86809082831213} is an apocalyptic number.

It is an amenable number.

86809082831213 is a deficient number, since it is larger than the sum of its proper divisors (1).

86809082831213 is an equidigital number, since it uses as much as digits as its factorization.

86809082831213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7962624, while the sum is 59.

The spelling of 86809082831213 in words is "eighty-six trillion, eight hundred nine billion, eighty-two million, eight hundred thirty-one thousand, two hundred thirteen".