2157879337 has 4 divisors (see below), whose sum is σ = 2160881280. Its totient is φ = 2154877396.

The previous prime is 2157879319. The next prime is 2157879397. The reversal of 2157879337 is 7339787512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2157879337 - 2¹¹ = 2157877289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2157879397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1499893 + ... + 1501330.

It is an arithmetic number, because the mean of its divisors is an integer number (540220320).

Almost surely, 2^2157879337 is an apocalyptic number.

It is an amenable number.

2157879337 is a deficient number, since it is larger than the sum of its proper divisors (3001943).

2157879337 is an equidigital number, since it uses as much as digits as its factorization.

2157879337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001942.

The product of its digits is 2222640, while the sum is 52.

The square root of 2157879337 is about 46452.9798505973. The cubic root of 2157879337 is about 1292.2376356898.

The spelling of 2157879337 in words is "two billion, one hundred fifty-seven million, eight hundred seventy-nine thousand, three hundred thirty-seven".