12543870669000 has 256 divisors, whose sum is σ = 42700236134400. Its totient is φ = 3040549344000.

The previous prime is 12543870668969. The next prime is 12543870669047. The reversal of 12543870669000 is 96607834521.

It is a super-2 number, since 2×12543870669000² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 322951581 + ... + 322990419.

It is an arithmetic number, because the mean of its divisors is an integer number (166797797400).

It is a 1-persistent number, because it is pandigital, but 2⋅12543870669000 = 25087741338000 is not.

Almost surely, 2^{12543870669000} is an apocalyptic number.

12543870669000 is a gapful number since it is divisible by the number (10) 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 12543870669000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21350118067200).

12543870669000 is an abundant number, since it is smaller than the sum of its proper divisors (30156365465400).

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

12543870669000 is a wasteful number, since it uses less digits than its factorization.

12543870669000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48661 (or 48647 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 12543870669000 in words is "twelve trillion, five hundred forty-three billion, eight hundred seventy million, six hundred sixty-nine thousand".