12471831249 has 24 divisors (see below), whose sum is σ = 17570013120. Its totient is φ = 7868139552.

The previous prime is 12471831187. The next prime is 12471831293. The reversal of 12471831249 is 94213817421.

It is not a de Polignac number, because 12471831249 - 2⁸ = 12471830993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12471831249.

It is not an unprimeable number, because it can be changed into a prime (12471831149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1041307 + ... + 1053215.

It is an arithmetic number, because the mean of its divisors is an integer number (732083880).

Almost surely, 2^12471831249 is an apocalyptic number.

12471831249 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12471831249 is a deficient number, since it is larger than the sum of its proper divisors (5098181871).

12471831249 is a wasteful number, since it uses less digits than its factorization.

12471831249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12917 (or 12898 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The spelling of 12471831249 in words is "twelve billion, four hundred seventy-one million, eight hundred thirty-one thousand, two hundred forty-nine".