2173379772 has 12 divisors (see below), whose sum is σ = 5071219496. Its totient is φ = 724459920.

The previous prime is 2173379759. The next prime is 2173379821. The reversal of 2173379772 is 2779733712.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 90557479 + ... + 90557502.

Almost surely, 2^2173379772 is an apocalyptic number.

It is an amenable number.

2173379772 is an abundant number, since it is smaller than the sum of its proper divisors (2897839724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2173379772 is a wasteful number, since it uses less digits than its factorization.

2173379772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181114988 (or 181114986 counting only the distinct ones).

The product of its digits is 777924, while the sum is 48.

The square root of 2173379772 is about 46619.5213617643. The cubic root of 2173379772 is about 1295.3243816029.

The spelling of 2173379772 in words is "two billion, one hundred seventy-three million, three hundred seventy-nine thousand, seven hundred seventy-two".