2129876879 has 8 divisors (see below), whose sum is σ = 2297551200. Its totient is φ = 1962750816.

The previous prime is 2129876857. The next prime is 2129876887. The reversal of 2129876879 is 9786789212.

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

It is a de Polignac number, because none of the positive numbers 2^k-2129876879 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 (2129876809) 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, 128972 + ... + 144545.

It is an arithmetic number, because the mean of its divisors is an integer number (287193900).

Almost surely, 2^2129876879 is an apocalyptic number.

2129876879 is a deficient number, since it is larger than the sum of its proper divisors (167674321).

2129876879 is a wasteful number, since it uses less digits than its factorization.

2129876879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274129.

The product of its digits is 6096384, while the sum is 59.

The square root of 2129876879 is about 46150.5891511690. The cubic root of 2129876879 is about 1286.6235599117.

The spelling of 2129876879 in words is "two billion, one hundred twenty-nine million, eight hundred seventy-six thousand, eight hundred seventy-nine".