8142173671 has 4 divisors (see below), whose sum is σ = 8200750600. Its totient is φ = 8083596744.

The previous prime is 8142173657. The next prime is 8142173687. The reversal of 8142173671 is 1763712418.

It is a happy number.

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 8142173671 - 2¹¹ = 8142171623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8142173621) 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, 29288256 + ... + 29288533.

It is an arithmetic number, because the mean of its divisors is an integer number (2050187650).

Almost surely, 2^8142173671 is an apocalyptic number.

8142173671 is a deficient number, since it is larger than the sum of its proper divisors (58576929).

8142173671 is a wasteful number, since it uses less digits than its factorization.

8142173671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58576928.

The product of its digits is 56448, while the sum is 40.

The square root of 8142173671 is about 90233.9939878536. The cubic root of 8142173671 is about 2011.7783055108.

The spelling of 8142173671 in words is "eight billion, one hundred forty-two million, one hundred seventy-three thousand, six hundred seventy-one".