12463139171 has 24 divisors (see below), whose sum is σ = 14662139184. Its totient is φ = 10562173440.

The previous prime is 12463139147. The next prime is 12463139239. The reversal of 12463139171 is 17193136421.

It is a happy number.

It is not a de Polignac number, because 12463139171 - 2¹⁸ = 12462877027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12463139111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2450351 + ... + 2455431.

It is an arithmetic number, because the mean of its divisors is an integer number (610922466).

Almost surely, 2^12463139171 is an apocalyptic number.

12463139171 is a deficient number, since it is larger than the sum of its proper divisors (2199000013).

12463139171 is a wasteful number, since it uses less digits than its factorization.

12463139171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5651 (or 5644 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The spelling of 12463139171 in words is "twelve billion, four hundred sixty-three million, one hundred thirty-nine thousand, one hundred seventy-one".