80739567289 has 2 divisors, whose sum is σ = 80739567290. Its totient is φ = 80739567288.

The previous prime is 80739567283. The next prime is 80739567313. The reversal of 80739567289 is 98276593708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67708203264 + 13031364025 = 260208^2 + 114155^2 .

It is a cyclic number.

It is not a de Polignac number, because 80739567289 - 2³¹ = 78592083641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80739567289.

It is not a weakly prime, because it can be changed into another prime (80739567283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40369783644 + 40369783645.

It is an arithmetic number, because the mean of its divisors is an integer number (40369783645).

Almost surely, 2^80739567289 is an apocalyptic number.

It is an amenable number.

80739567289 is a deficient number, since it is larger than the sum of its proper divisors (1).

80739567289 is an equidigital number, since it uses as much as digits as its factorization.

80739567289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45722880, while the sum is 64.

The spelling of 80739567289 in words is "eighty billion, seven hundred thirty-nine million, five hundred sixty-seven thousand, two hundred eighty-nine".