866800086760507 has 2 divisors, whose sum is σ = 866800086760508. Its totient is φ = 866800086760506.

The previous prime is 866800086760483. The next prime is 866800086760511. The reversal of 866800086760507 is 705067680008668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 866800086760507 - 2¹⁹ = 866800086236219 is a prime.

It is a super-3 number, since 3×866800086760507³ (a number of 46 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (866800086760607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433400043380253 + 433400043380254.

It is an arithmetic number, because the mean of its divisors is an integer number (433400043380254).

Almost surely, 2^{866800086760507} is an apocalyptic number.

866800086760507 is a deficient number, since it is larger than the sum of its proper divisors (1).

866800086760507 is an equidigital number, since it uses as much as digits as its factorization.

866800086760507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162570240, while the sum is 67.

The spelling of 866800086760507 in words is "eight hundred sixty-six trillion, eight hundred billion, eighty-six million, seven hundred sixty thousand, five hundred seven".