4006723672171 has 4 divisors (see below), whose sum is σ = 4370971278744. Its totient is φ = 3642476065600.

The previous prime is 4006723672139. The next prime is 4006723672177. The reversal of 4006723672171 is 1712763276004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4006723672171 - 2⁵ = 4006723672139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4006723672177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182123803270 + ... + 182123803291.

It is an arithmetic number, because the mean of its divisors is an integer number (1092742819686).

Almost surely, 2^{4006723672171} is an apocalyptic number.

4006723672171 is a deficient number, since it is larger than the sum of its proper divisors (364247606573).

4006723672171 is a wasteful number, since it uses less digits than its factorization.

4006723672171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364247606572.

The product of its (nonzero) digits is 592704, while the sum is 46.

The spelling of 4006723672171 in words is "four trillion, six billion, seven hundred twenty-three million, six hundred seventy-two thousand, one hundred seventy-one".