8170806218479 has 4 divisors (see below), whose sum is σ = 8178872168376. Its totient is φ = 8162740268584.

The previous prime is 8170806218467. The next prime is 8170806218503. The reversal of 8170806218479 is 9748126080718.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8170806218479 - 2²⁹ = 8170269347567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8170806218879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4032973429 + ... + 4032975454.

It is an arithmetic number, because the mean of its divisors is an integer number (2044718042094).

Almost surely, 2^{8170806218479} is an apocalyptic number.

8170806218479 is a deficient number, since it is larger than the sum of its proper divisors (8065949897).

8170806218479 is a wasteful number, since it uses less digits than its factorization.

8170806218479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8065949896.

The product of its (nonzero) digits is 10838016, while the sum is 61.

The spelling of 8170806218479 in words is "eight trillion, one hundred seventy billion, eight hundred six million, two hundred eighteen thousand, four hundred seventy-nine".