2179356879 has 24 divisors (see below), whose sum is σ = 3394787760. Its totient is φ = 1239982464.

The previous prime is 2179356859. The next prime is 2179356887. The reversal of 2179356879 is 9786539712.

2179356879 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2179356879 - 2²⁰ = 2178308303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2179356859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2437 + ... + 66065.

It is an arithmetic number, because the mean of its divisors is an integer number (141449490).

Almost surely, 2^2179356879 is an apocalyptic number.

2179356879 is a deficient number, since it is larger than the sum of its proper divisors (1215430881).

2179356879 is a wasteful number, since it uses less digits than its factorization.

2179356879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63879 (or 63872 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 57.

The square root of 2179356879 is about 46683.5825424742. The cubic root of 2179356879 is about 1296.5107375081.

The spelling of 2179356879 in words is "two billion, one hundred seventy-nine million, three hundred fifty-six thousand, eight hundred seventy-nine".