2171051018 has 8 divisors (see below), whose sum is σ = 3256851648. Its totient is φ = 1085433804.

The previous prime is 2171051009. The next prime is 2171051059. The reversal of 2171051018 is 8101501712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10946 + ... + 66797.

It is an arithmetic number, because the mean of its divisors is an integer number (407106456).

Almost surely, 2^2171051018 is an apocalyptic number.

2171051018 is a deficient number, since it is larger than the sum of its proper divisors (1085800630).

2171051018 is a wasteful number, since it uses less digits than its factorization.

2171051018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91708.

The product of its (nonzero) digits is 560, while the sum is 26.

The square root of 2171051018 is about 46594.5384996997. The cubic root of 2171051018 is about 1294.8615740293.

The spelling of 2171051018 in words is "two billion, one hundred seventy-one million, fifty-one thousand, eighteen".