866514132073673 has 2 divisors, whose sum is σ = 866514132073674. Its totient is φ = 866514132073672.

The previous prime is 866514132073657. The next prime is 866514132073717. The reversal of 866514132073673 is 376370231415668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 723513001850809 + 143001130222864 = 26898197^2 + 11958308^2 .

It is a cyclic number.

It is not a de Polignac number, because 866514132073673 - 2⁴ = 866514132073657 is a prime.

It is not a weakly prime, because it can be changed into another prime (866514132073973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433257066036836 + 433257066036837.

It is an arithmetic number, because the mean of its divisors is an integer number (433257066036837).

Almost surely, 2^{866514132073673} is an apocalyptic number.

It is an amenable number.

866514132073673 is a deficient number, since it is larger than the sum of its proper divisors (1).

866514132073673 is an equidigital number, since it uses as much as digits as its factorization.

866514132073673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91445760, while the sum is 62.

The spelling of 866514132073673 in words is "eight hundred sixty-six trillion, five hundred fourteen billion, one hundred thirty-two million, seventy-three thousand, six hundred seventy-three".