71892042189 has 48 divisors (see below), whose sum is σ = 107085139392. Its totient is φ = 42863040000.

The previous prime is 71892042161. The next prime is 71892042191. The reversal of 71892042189 is 98124029817.

It is a happy number.

It is not a de Polignac number, because 71892042189 - 2⁹ = 71892041677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71892042109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7256139 + ... + 7266039.

It is an arithmetic number, because the mean of its divisors is an integer number (2230940404).

Almost surely, 2^71892042189 is an apocalyptic number.

It is an amenable number.

71892042189 is a deficient number, since it is larger than the sum of its proper divisors (35193097203).

71892042189 is a wasteful number, since it uses less digits than its factorization.

71892042189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10250 (or 10239 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 51.

The spelling of 71892042189 in words is "seventy-one billion, eight hundred ninety-two million, forty-two thousand, one hundred eighty-nine".