2421541543 has 8 divisors (see below), whose sum is σ = 2463748560. Its totient is φ = 2379373440.

The previous prime is 2421541531. The next prime is 2421541561. The reversal of 2421541543 is 3451451242.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2421541543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421545543) 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, 134113 + ... + 151093.

It is an arithmetic number, because the mean of its divisors is an integer number (307968570).

Almost surely, 2^2421541543 is an apocalyptic number.

2421541543 is a deficient number, since it is larger than the sum of its proper divisors (42207017).

2421541543 is a wasteful number, since it uses less digits than its factorization.

2421541543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19457.

The product of its digits is 19200, while the sum is 31.

The square root of 2421541543 is about 49209.1611694408. The cubic root of 2421541543 is about 1342.8597023216.

Adding to 2421541543 its reverse (3451451242), we get a palindrome (5872992785).

The spelling of 2421541543 in words is "two billion, four hundred twenty-one million, five hundred forty-one thousand, five hundred forty-three".