2147579871 has 4 divisors (see below), whose sum is σ = 2863439832. Its totient is φ = 1431719912.

The previous prime is 2147579857. The next prime is 2147579933. The reversal of 2147579871 is 1789757412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2147579871 - 2⁶ = 2147579807 is a prime.

It is a super-2 number, since 2×2147579871² = 9224198604648753282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147579821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357929976 + ... + 357929981.

It is an arithmetic number, because the mean of its divisors is an integer number (715859958).

Almost surely, 2^2147579871 is an apocalyptic number.

2147579871 is a deficient number, since it is larger than the sum of its proper divisors (715859961).

2147579871 is an equidigital number, since it uses as much as digits as its factorization.

2147579871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715859960.

The product of its digits is 987840, while the sum is 51.

The square root of 2147579871 is about 46341.9882072403. The cubic root of 2147579871 is about 1290.1784243319.

The spelling of 2147579871 in words is "two billion, one hundred forty-seven million, five hundred seventy-nine thousand, eight hundred seventy-one".