2543412341643 has 4 divisors (see below), whose sum is σ = 3391216455528. Its totient is φ = 1695608227760.

The previous prime is 2543412341609. The next prime is 2543412341681. The reversal of 2543412341643 is 3461432143452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2543412341643 - 2²⁰ = 2543411293067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2543412341595 and 2543412341604.

It is not an unprimeable number, because it can be changed into a prime (2543412341143) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 423902056938 + ... + 423902056943.

It is an arithmetic number, because the mean of its divisors is an integer number (847804113882).

Almost surely, 2^{2543412341643} is an apocalyptic number.

2543412341643 is a deficient number, since it is larger than the sum of its proper divisors (847804113885).

2543412341643 is an equidigital number, since it uses as much as digits as its factorization.

2543412341643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847804113884.

The product of its digits is 829440, while the sum is 42.

The spelling of 2543412341643 in words is "two trillion, five hundred forty-three billion, four hundred twelve million, three hundred forty-one thousand, six hundred forty-three".