12453012563 has 16 divisors (see below), whose sum is σ = 12650580000. Its totient is φ = 12257333760.

The previous prime is 12453012557. The next prime is 12453012571. The reversal of 12453012563 is 36521035421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12453012563 - 2⁸ = 12453012307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12453012763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15167693 + ... + 15168513.

It is an arithmetic number, because the mean of its divisors is an integer number (790661250).

Almost surely, 2^12453012563 is an apocalyptic number.

12453012563 is a deficient number, since it is larger than the sum of its proper divisors (197567437).

12453012563 is a wasteful number, since it uses less digits than its factorization.

12453012563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 12453012563 its reverse (36521035421), we get a palindrome (48974047984).

The spelling of 12453012563 in words is "twelve billion, four hundred fifty-three million, twelve thousand, five hundred sixty-three".