2543108641 has 4 divisors (see below), whose sum is σ = 2543411392. Its totient is φ = 2542805892.

The previous prime is 2543108639. The next prime is 2543108647. The reversal of 2543108641 is 1468013452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2543108641 - 2¹ = 2543108639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2543108597 and 2543108606.

It is not an unprimeable number, because it can be changed into a prime (2543108647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138405 + ... + 155698.

It is an arithmetic number, because the mean of its divisors is an integer number (635852848).

Almost surely, 2^2543108641 is an apocalyptic number.

It is an amenable number.

2543108641 is a deficient number, since it is larger than the sum of its proper divisors (302751).

2543108641 is an equidigital number, since it uses as much as digits as its factorization.

2543108641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302750.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 2543108641 is about 50429.2439066857. The cubic root of 2543108641 is about 1364.9653845874.

The spelling of 2543108641 in words is "two billion, five hundred forty-three million, one hundred eight thousand, six hundred forty-one".