2124173691 has 12 divisors (see below), whose sum is σ = 3068669760. Its totient is φ = 1415922480.

The previous prime is 2124173687. The next prime is 2124173707. The reversal of 2124173691 is 1963714212.

It is not a de Polignac number, because 2124173691 - 2² = 2124173687 is a prime.

It is a super-2 number, since 2×2124173691² = 9024227739073126962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2124173621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90870 + ... + 111828.

It is an arithmetic number, because the mean of its divisors is an integer number (255722480).

Almost surely, 2^2124173691 is an apocalyptic number.

2124173691 is a deficient number, since it is larger than the sum of its proper divisors (944496069).

2124173691 is a wasteful number, since it uses less digits than its factorization.

2124173691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32226 (or 32223 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2124173691 is about 46088.7588355339. The cubic root of 2124173691 is about 1285.4741326959.

The spelling of 2124173691 in words is "two billion, one hundred twenty-four million, one hundred seventy-three thousand, six hundred ninety-one".