12452997648 has 320 divisors, whose sum is σ = 42082306560. Its totient is φ = 3084189696.

The previous prime is 12452997589. The next prime is 12452997653. The reversal of 12452997648 is 84679925421.

It is a Cunningham number, because it is equal to 111593²-1.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4685536 + ... + 4688192.

It is an arithmetic number, because the mean of its divisors is an integer number (131507208).

Almost surely, 2^12452997648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12452997648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21041153280).

12452997648 is an abundant number, since it is smaller than the sum of its proper divisors (29629308912).

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

12452997648 is a wasteful number, since it uses less digits than its factorization.

12452997648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754 (or 2748 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 57.

The spelling of 12452997648 in words is "twelve billion, four hundred fifty-two million, nine hundred ninety-seven thousand, six hundred forty-eight".