2159047679 has 4 divisors (see below), whose sum is σ = 2173346160. Its totient is φ = 2144749200.

The previous prime is 2159047661. The next prime is 2159047703. The reversal of 2159047679 is 9767409512.

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 2159047679 - 2¹² = 2159043583 is a prime.

It is a super-2 number, since 2×2159047679² = 9322973760390574082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159047279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7149014 + ... + 7149315.

It is an arithmetic number, because the mean of its divisors is an integer number (543336540).

Almost surely, 2^2159047679 is an apocalyptic number.

2159047679 is a deficient number, since it is larger than the sum of its proper divisors (14298481).

2159047679 is a wasteful number, since it uses less digits than its factorization.

2159047679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14298480.

The product of its (nonzero) digits is 952560, while the sum is 50.

The square root of 2159047679 is about 46465.5536822709. The cubic root of 2159047679 is about 1292.4708126304.

The spelling of 2159047679 in words is "two billion, one hundred fifty-nine million, forty-seven thousand, six hundred seventy-nine".