544542643 has 4 divisors (see below), whose sum is σ = 544732240. Its totient is φ = 544353048.

The previous prime is 544542637. The next prime is 544542659. The reversal of 544542643 is 346245445.

544542643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 544542643 - 2²⁹ = 7671731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544542613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90423 + ... + 96256.

It is an arithmetic number, because the mean of its divisors is an integer number (136183060).

Almost surely, 2^544542643 is an apocalyptic number.

544542643 is a deficient number, since it is larger than the sum of its proper divisors (189597).

544542643 is a wasteful number, since it uses less digits than its factorization.

544542643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189596.

The product of its digits is 230400, while the sum is 37.

The square root of 544542643 is about 23335.4374932205. The cubic root of 544542643 is about 816.6023617468.

The spelling of 544542643 in words is "five hundred forty-four million, five hundred forty-two thousand, six hundred forty-three".