38171139143 has 4 divisors (see below), whose sum is σ = 38228887368. Its totient is φ = 38113390920.

The previous prime is 38171139121. The next prime is 38171139163. The reversal of 38171139143 is 34193117183.

38171139143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 38171139143 - 2⁶ = 38171139079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38171139143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38171139103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28873121 + ... + 28874442.

It is an arithmetic number, because the mean of its divisors is an integer number (9557221842).

Almost surely, 2^38171139143 is an apocalyptic number.

38171139143 is a deficient number, since it is larger than the sum of its proper divisors (57748225).

38171139143 is an equidigital number, since it uses as much as digits as its factorization.

38171139143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57748224.

The product of its digits is 54432, while the sum is 41.

The spelling of 38171139143 in words is "thirty-eight billion, one hundred seventy-one million, one hundred thirty-nine thousand, one hundred forty-three".