12443147671 has 16 divisors (see below), whose sum is σ = 14063880960. Its totient is φ = 10938533760.

The previous prime is 12443147609. The next prime is 12443147713. The reversal of 12443147671 is 17674134421.

It is a cyclic number.

It is not a de Polignac number, because 12443147671 - 2²³ = 12434759063 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 (12443147371) 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, 248361 + ... + 294226.

It is an arithmetic number, because the mean of its divisors is an integer number (878992560).

Almost surely, 2^12443147671 is an apocalyptic number.

12443147671 is a deficient number, since it is larger than the sum of its proper divisors (1620733289).

12443147671 is a wasteful number, since it uses less digits than its factorization.

12443147671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542694.

The product of its digits is 112896, while the sum is 40.

The spelling of 12443147671 in words is "twelve billion, four hundred forty-three million, one hundred forty-seven thousand, six hundred seventy-one".