3872171904003 has 36 divisors (see below), whose sum is σ = 6058392707640. Its totient is φ = 2382120119808.

The previous prime is 3872171904001. The next prime is 3872171904023. The reversal of 3872171904003 is 3004091712783.

3872171904003 is a `hidden beast` number, since 3 + 8 + 72 + 171 + 9 + 0 + 400 + 3 = 666.

It is not a de Polignac number, because 3872171904003 - 2¹ = 3872171904001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3872171904003.

It is not an unprimeable number, because it can be changed into a prime (3872171904001) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4418376 + ... + 5221722.

Almost surely, 2^{3872171904003} is an apocalyptic number.

3872171904003 is a deficient number, since it is larger than the sum of its proper divisors (2186220803637).

3872171904003 is a wasteful number, since it uses less digits than its factorization.

3872171904003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806548 (or 806532 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 3872171904003 in words is "three trillion, eight hundred seventy-two billion, one hundred seventy-one million, nine hundred four thousand, three".