2159905079 has 8 divisors (see below), whose sum is σ = 2173610880. Its totient is φ = 2146235616.

The previous prime is 2159905073. The next prime is 2159905117. The reversal of 2159905079 is 9705099512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2159905079 - 2⁸ = 2159904823 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 (2159905073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115517 + ... + 132905.

It is an arithmetic number, because the mean of its divisors is an integer number (271701360).

Almost surely, 2^2159905079 is an apocalyptic number.

2159905079 is a deficient number, since it is larger than the sum of its proper divisors (13705801).

2159905079 is a wasteful number, since it uses less digits than its factorization.

2159905079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18169.

The product of its (nonzero) digits is 255150, while the sum is 47.

The square root of 2159905079 is about 46474.7789559025. The cubic root of 2159905079 is about 1292.6418784552.

The spelling of 2159905079 in words is "two billion, one hundred fifty-nine million, nine hundred five thousand, seventy-nine".