2152279879 has 8 divisors (see below), whose sum is σ = 2162274480. Its totient is φ = 2142302400.

The previous prime is 2152279867. The next prime is 2152279919. The reversal of 2152279879 is 9789722512.

It is a happy number.

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 2152279879 - 2¹⁷ = 2152148807 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 (2152276879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294532 + ... + 301750.

It is an arithmetic number, because the mean of its divisors is an integer number (270284310).

Almost surely, 2^2152279879 is an apocalyptic number.

2152279879 is a deficient number, since it is larger than the sum of its proper divisors (9994601).

2152279879 is a wasteful number, since it uses less digits than its factorization.

2152279879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8561.

The product of its digits is 1270080, while the sum is 52.

The square root of 2152279879 is about 46392.6705310225. The cubic root of 2152279879 is about 1291.1189296207.

The spelling of 2152279879 in words is "two billion, one hundred fifty-two million, two hundred seventy-nine thousand, eight hundred seventy-nine".