2173056772 has 24 divisors (see below), whose sum is σ = 3914640576. Its totient is φ = 1054891488.

The previous prime is 2173056751. The next prime is 2173056833. The reversal of 2173056772 is 2776503712.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9103 + ... + 66550.

It is an arithmetic number, because the mean of its divisors is an integer number (163110024).

Almost surely, 2^2173056772 is an apocalyptic number.

It is an amenable number.

2173056772 is a deficient number, since it is larger than the sum of its proper divisors (1741583804).

2173056772 is a wasteful number, since it uses less digits than its factorization.

2173056772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75867 (or 75865 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 40.

The square root of 2173056772 is about 46616.0570190144. The cubic root of 2173056772 is about 1295.2602095840.

The spelling of 2173056772 in words is "two billion, one hundred seventy-three million, fifty-six thousand, seven hundred seventy-two".