12543045425543 has 8 divisors (see below), whose sum is σ = 12641954856960. Its totient is φ = 12444138264600.

The previous prime is 12543045425489. The next prime is 12543045425597. The reversal of 12543045425543 is 34552454034521.

12543045425543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12543045425489) and next prime (12543045425597).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12543045425543 - 2¹⁶ = 12543045360007 is a prime.

It is a super-4 number, since 4×12543045425543⁴ (a number of 53 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12543048425543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11538698 + ... + 12578856.

It is an arithmetic number, because the mean of its divisors is an integer number (1580244357120).

Almost surely, 2^{12543045425543} is an apocalyptic number.

12543045425543 is a deficient number, since it is larger than the sum of its proper divisors (98909431417).

12543045425543 is a wasteful number, since it uses less digits than its factorization.

12543045425543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135237.

The product of its (nonzero) digits is 5760000, while the sum is 47.

The spelling of 12543045425543 in words is "twelve trillion, five hundred forty-three billion, forty-five million, four hundred twenty-five thousand, five hundred forty-three".