866486932613 has 2 divisors, whose sum is σ = 866486932614. Its totient is φ = 866486932612.

The previous prime is 866486932579. The next prime is 866486932637. The reversal of 866486932613 is 316239684668.

It is a happy number.

866486932613 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., 692195712289 + 174291220324 = 831983^2 + 417482^2 .

It is a cyclic number.

It is not a de Polignac number, because 866486932613 - 2¹⁰ = 866486931589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (866486932643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433243466306 + 433243466307.

It is an arithmetic number, because the mean of its divisors is an integer number (433243466307).

Almost surely, 2^866486932613 is an apocalyptic number.

It is an amenable number.

866486932613 is a deficient number, since it is larger than the sum of its proper divisors (1).

866486932613 is an equidigital number, since it uses as much as digits as its factorization.

866486932613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53747712, while the sum is 62.

The spelling of 866486932613 in words is "eight hundred sixty-six billion, four hundred eighty-six million, nine hundred thirty-two thousand, six hundred thirteen".