12453032448 has 160 divisors (see below), whose sum is σ = 38134166400. Its totient is φ = 4007743488.

The previous prime is 12453032443. The next prime is 12453032461. The reversal of 12453032448 is 84423035421.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12453032443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385365 + ... + 416427.

It is an arithmetic number, because the mean of its divisors is an integer number (238338540).

Almost surely, 2^12453032448 is an apocalyptic number.

12453032448 is a gapful number since it is divisible by the number (18) 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 12453032448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19067083200).

12453032448 is an abundant number, since it is smaller than the sum of its proper divisors (25681133952).

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

12453032448 is an equidigital number, since it uses as much as digits as its factorization.

12453032448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31119 (or 31097 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 12453032448 its reverse (84423035421), we get a palindrome (96876067869).

The spelling of 12453032448 in words is "twelve billion, four hundred fifty-three million, thirty-two thousand, four hundred forty-eight".