2180012871 has 8 divisors (see below), whose sum is σ = 2908692864. Its totient is φ = 1452337400.

The previous prime is 2180012831. The next prime is 2180012873. The reversal of 2180012871 is 1782100812.

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 2180012871 - 2⁷ = 2180012743 is a prime.

It is a super-2 number, since 2×2180012871² = 9504912235451325282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180012873) 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, 246051 + ... + 254756.

It is an arithmetic number, because the mean of its divisors is an integer number (363586608).

Almost surely, 2^2180012871 is an apocalyptic number.

2180012871 is a deficient number, since it is larger than the sum of its proper divisors (728679993).

2180012871 is a wasteful number, since it uses less digits than its factorization.

2180012871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502261.

The product of its (nonzero) digits is 1792, while the sum is 30.

The square root of 2180012871 is about 46690.6079527778. The cubic root of 2180012871 is about 1296.6408088088.

The spelling of 2180012871 in words is "two billion, one hundred eighty million, twelve thousand, eight hundred seventy-one".