727143527989 has 2 divisors, whose sum is σ = 727143527990. Its totient is φ = 727143527988.

The previous prime is 727143527987. The next prime is 727143528037. The reversal of 727143527989 is 989725341727.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 699606780625 + 27536747364 = 836425^2 + 165942^2 .

It is a cyclic number.

It is not a de Polignac number, because 727143527989 - 2¹ = 727143527987 is a prime.

Together with 727143527987, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 727143527989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (727143527987) 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 as a sum of consecutive naturals, namely, 363571763994 + 363571763995.

It is an arithmetic number, because the mean of its divisors is an integer number (363571763995).

Almost surely, 2^727143527989 is an apocalyptic number.

It is an amenable number.

727143527989 is a deficient number, since it is larger than the sum of its proper divisors (1).

727143527989 is an equidigital number, since it uses as much as digits as its factorization.

727143527989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53343360, while the sum is 64.

The spelling of 727143527989 in words is "seven hundred twenty-seven billion, one hundred forty-three million, five hundred twenty-seven thousand, nine hundred eighty-nine".