12453543936 has 432 divisors, whose sum is σ = 41221462464. Its totient is φ = 3737124864.

The previous prime is 12453543887. The next prime is 12453543941. The reversal of 12453543936 is 63934535421.

12453543936 is a `hidden beast` number, since 1 + 24 + 53 + 543 + 9 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a super-4 number, since 4×12453543936⁴ (a number of 41 digits) contains 4444 as substring.

Its product of digits (1166400) is a multiple of the sum of its prime divisors (45).

It is a junction number, because it is equal to n+sod(n) for n = 12453543891 and 12453543900.

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, 541458421 + ... + 541458443.

It is an arithmetic number, because the mean of its divisors is an integer number (95420052).

Almost surely, 2^12453543936 is an apocalyptic number.

12453543936 is a gapful number since it is divisible by the number (16) 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 12453543936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20610731232).

12453543936 is an abundant number, since it is smaller than the sum of its proper divisors (28767918528).

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

12453543936 is an frugal number, since it uses more digits than its factorization.

12453543936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 45 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 45.

The spelling of 12453543936 in words is "twelve billion, four hundred fifty-three million, five hundred forty-three thousand, nine hundred thirty-six".