2942721173 has 8 divisors (see below), whose sum is σ = 3426565248. Its totient is φ = 2474740944.

The previous prime is 2942721163. The next prime is 2942721193. The reversal of 2942721173 is 3711272492.

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 2942721173 - 2⁶ = 2942721109 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 (2942721113) 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, 3965561 + ... + 3966302.

It is an arithmetic number, because the mean of its divisors is an integer number (428320656).

Almost surely, 2^2942721173 is an apocalyptic number.

It is an amenable number.

2942721173 is a deficient number, since it is larger than the sum of its proper divisors (483844075).

2942721173 is an equidigital number, since it uses as much as digits as its factorization.

2942721173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7931923.

The product of its digits is 42336, while the sum is 38.

The square root of 2942721173 is about 54246.8540378149. The cubic root of 2942721173 is about 1433.0115957803.

The spelling of 2942721173 in words is "two billion, nine hundred forty-two million, seven hundred twenty-one thousand, one hundred seventy-three".