2141721773 has 8 divisors (see below), whose sum is σ = 2188240896. Its totient is φ = 2095570800.

The previous prime is 2141721763. The next prime is 2141721793. The reversal of 2141721773 is 3771271412.

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 2141721773 - 2²⁶ = 2074612909 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 (2141721763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80261 + ... + 103562.

It is an arithmetic number, because the mean of its divisors is an integer number (273530112).

Almost surely, 2^2141721773 is an apocalyptic number.

It is an amenable number.

2141721773 is a deficient number, since it is larger than the sum of its proper divisors (46519123).

2141721773 is a wasteful number, since it uses less digits than its factorization.

2141721773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184075.

The product of its digits is 16464, while the sum is 35.

The square root of 2141721773 is about 46278.7399677217. The cubic root of 2141721773 is about 1289.0042539196.

The spelling of 2141721773 in words is "two billion, one hundred forty-one million, seven hundred twenty-one thousand, seven hundred seventy-three".