2164534279 has 8 divisors (see below), whose sum is σ = 2234792448. Its totient is φ = 2095107840.

The previous prime is 2164534243. The next prime is 2164534349. The reversal of 2164534279 is 9724354612.

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 2164534279 - 2²³ = 2156145671 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 (2164534679) 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, 202642 + ... + 213055.

It is an arithmetic number, because the mean of its divisors is an integer number (279349056).

Almost surely, 2^2164534279 is an apocalyptic number.

2164534279 is a deficient number, since it is larger than the sum of its proper divisors (70258169).

2164534279 is a wasteful number, since it uses less digits than its factorization.

2164534279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415865.

The product of its digits is 362880, while the sum is 43.

The square root of 2164534279 is about 46524.5556561264. Note that the first 3 decimals coincide. The cubic root of 2164534279 is about 1293.5647010896.

The spelling of 2164534279 in words is "two billion, one hundred sixty-four million, five hundred thirty-four thousand, two hundred seventy-nine".