38820442171 has 16 divisors (see below), whose sum is σ = 45011845120. Its totient is φ = 32793919200.

The previous prime is 38820442139. The next prime is 38820442181. The reversal of 38820442171 is 17124402883.

It is not a de Polignac number, because 38820442171 - 2⁵ = 38820442139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38820442121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10356 + ... + 278833.

It is an arithmetic number, because the mean of its divisors is an integer number (2813240320).

Almost surely, 2^38820442171 is an apocalyptic number.

38820442171 is a deficient number, since it is larger than the sum of its proper divisors (6191402949).

38820442171 is a wasteful number, since it uses less digits than its factorization.

38820442171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289474.

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 38820442171 in words is "thirty-eight billion, eight hundred twenty million, four hundred forty-two thousand, one hundred seventy-one".