2541443641 has 4 divisors (see below), whose sum is σ = 2772483984. Its totient is φ = 2310403300.

The previous prime is 2541443587. The next prime is 2541443669. The reversal of 2541443641 is 1463441452.

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 2541443641 - 2²⁷ = 2407225913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2541443597 and 2541443606.

It is not an unprimeable number, because it can be changed into a prime (2541443041) 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, 115520155 + ... + 115520176.

It is an arithmetic number, because the mean of its divisors is an integer number (693120996).

Almost surely, 2^2541443641 is an apocalyptic number.

It is an amenable number.

2541443641 is a deficient number, since it is larger than the sum of its proper divisors (231040343).

2541443641 is a wasteful number, since it uses less digits than its factorization.

2541443641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231040342.

The product of its digits is 46080, while the sum is 34.

The square root of 2541443641 is about 50412.7329253235. The cubic root of 2541443641 is about 1364.6674338184.

The spelling of 2541443641 in words is "two billion, five hundred forty-one million, four hundred forty-three thousand, six hundred forty-one".