2173772830 has 64 divisors (see below), whose sum is σ = 4240874880. Its totient is φ = 799248384.

The previous prime is 2173772827. The next prime is 2173772831. The reversal of 2173772830 is 382773712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173772831) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1351887 + ... + 1353493.

It is an arithmetic number, because the mean of its divisors is an integer number (66263670).

Almost surely, 2^2173772830 is an apocalyptic number.

2173772830 is a deficient number, since it is larger than the sum of its proper divisors (2067102050).

2173772830 is a wasteful number, since it uses less digits than its factorization.

2173772830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813.

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 2173772830 is about 46623.7367657291. The cubic root of 2173772830 is about 1295.4024638181.

The spelling of 2173772830 in words is "two billion, one hundred seventy-three million, seven hundred seventy-two thousand, eight hundred thirty".