72544330603 has 2 divisors, whose sum is σ = 72544330604. Its totient is φ = 72544330602.

The previous prime is 72544330517. The next prime is 72544330717. The reversal of 72544330603 is 30603344527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72544330603 - 2⁹ = 72544330091 is a prime.

It is not a weakly prime, because it can be changed into another prime (72544331603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36272165301 + 36272165302.

It is an arithmetic number, because the mean of its divisors is an integer number (36272165302).

Almost surely, 2^72544330603 is an apocalyptic number.

72544330603 is a deficient number, since it is larger than the sum of its proper divisors (1).

72544330603 is an equidigital number, since it uses as much as digits as its factorization.

72544330603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 37.

The spelling of 72544330603 in words is "seventy-two billion, five hundred forty-four million, three hundred thirty thousand, six hundred three".