84143234147 has 4 divisors (see below), whose sum is σ = 96163696176. Its totient is φ = 72122772120.

The previous prime is 84143234143. The next prime is 84143234191. The reversal of 84143234147 is 74143234148.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 84143234147 - 2² = 84143234143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84143234143) 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, 6010231004 + ... + 6010231017.

It is an arithmetic number, because the mean of its divisors is an integer number (24040924044).

Almost surely, 2^84143234147 is an apocalyptic number.

84143234147 is a deficient number, since it is larger than the sum of its proper divisors (12020462029).

84143234147 is a wasteful number, since it uses less digits than its factorization.

84143234147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12020462028.

The product of its digits is 258048, while the sum is 41.

Subtracting from 84143234147 its reverse (74143234148), we obtain a palindrome (9999999999).

The spelling of 84143234147 in words is "eighty-four billion, one hundred forty-three million, two hundred thirty-four thousand, one hundred forty-seven".