866472463367873 has 4 divisors (see below), whose sum is σ = 912076277229360. Its totient is φ = 820868649506388.

The previous prime is 866472463367779. The next prime is 866472463367921. The reversal of 866472463367873 is 378763364274668.

866472463367873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 866472463367873 - 2⁸ = 866472463367617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (866472463367473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22801906930715 + ... + 22801906930752.

It is an arithmetic number, because the mean of its divisors is an integer number (228019069307340).

Almost surely, 2^{866472463367873} is an apocalyptic number.

It is an amenable number.

866472463367873 is a deficient number, since it is larger than the sum of its proper divisors (45603813861487).

866472463367873 is a wasteful number, since it uses less digits than its factorization.

866472463367873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45603813861486.

The product of its digits is 24580620288, while the sum is 80.

The spelling of 866472463367873 in words is "eight hundred sixty-six trillion, four hundred seventy-two billion, four hundred sixty-three million, three hundred sixty-seven thousand, eight hundred seventy-three".