2173722875 has 32 divisors (see below), whose sum is σ = 2766184512. Its totient is φ = 1705017600.

The previous prime is 2173722853. The next prime is 2173722919. The reversal of 2173722875 is 5782273712.

It is not a de Polignac number, because 2173722875 - 2¹² = 2173718779 is a prime.

It is a super-2 number, since 2×2173722875² = 9450142274596531250, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 2319407 + ... + 2320343.

It is an arithmetic number, because the mean of its divisors is an integer number (86443266).

Almost surely, 2^2173722875 is an apocalyptic number.

2173722875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2173722875 is a deficient number, since it is larger than the sum of its proper divisors (592461637).

2173722875 is an equidigital number, since it uses as much as digits as its factorization.

2173722875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296 (or 1286 counting only the distinct ones).

The product of its digits is 329280, while the sum is 44.

The square root of 2173722875 is about 46623.2010376808. The cubic root of 2173722875 is about 1295.3925406215.

The spelling of 2173722875 in words is "two billion, one hundred seventy-three million, seven hundred twenty-two thousand, eight hundred seventy-five".