12447459192 has 128 divisors (see below), whose sum is σ = 36607680000. Its totient is φ = 3452502528.

The previous prime is 12447459187. The next prime is 12447459197. The reversal of 12447459192 is 29195474421.

It is an interprime number because it is at equal distance from previous prime (12447459187) and next prime (12447459197).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12447459197) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3099778 + ... + 3103790.

It is an arithmetic number, because the mean of its divisors is an integer number (285997500).

Almost surely, 2^12447459192 is an apocalyptic number.

12447459192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12447459192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18303840000).

12447459192 is an abundant number, since it is smaller than the sum of its proper divisors (24160220808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12447459192 is a wasteful number, since it uses less digits than its factorization.

12447459192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4565 (or 4561 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The spelling of 12447459192 in words is "twelve billion, four hundred forty-seven million, four hundred fifty-nine thousand, one hundred ninety-two".