12369857472 has 168 divisors, whose sum is σ = 41464032896. Its totient is φ = 3452004864.

The previous prime is 12369857443. The next prime is 12369857503. The reversal of 12369857472 is 27475896321.

It is a happy number.

12369857472 is a `hidden beast` number, since 1 + 2 + 3 + 69 + 8 + 574 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137703 + ... + 209049.

Almost surely, 2^12369857472 is an apocalyptic number.

12369857472 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 12369857472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20732016448).

12369857472 is an abundant number, since it is smaller than the sum of its proper divisors (29094175424).

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

12369857472 is a wasteful number, since it uses less digits than its factorization.

12369857472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71415 (or 71402 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 12369857472 in words is "twelve billion, three hundred sixty-nine million, eight hundred fifty-seven thousand, four hundred seventy-two".