86725948213 has 2 divisors, whose sum is σ = 86725948214. Its totient is φ = 86725948212.

The previous prime is 86725948201. The next prime is 86725948219. The reversal of 86725948213 is 31284952768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86481870084 + 244078129 = 294078^2 + 15623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86725948213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86725948219) 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, 43362974106 + 43362974107.

It is an arithmetic number, because the mean of its divisors is an integer number (43362974107).

Almost surely, 2^86725948213 is an apocalyptic number.

It is an amenable number.

86725948213 is a deficient number, since it is larger than the sum of its proper divisors (1).

86725948213 is an equidigital number, since it uses as much as digits as its factorization.

86725948213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 55.

The spelling of 86725948213 in words is "eighty-six billion, seven hundred twenty-five million, nine hundred forty-eight thousand, two hundred thirteen".