80534752717 has 2 divisors, whose sum is σ = 80534752718. Its totient is φ = 80534752716.

The previous prime is 80534752691. The next prime is 80534752721. The reversal of 80534752717 is 71725743508.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69614711716 + 10920041001 = 263846^2 + 104499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80534752717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80534752757) 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, 40267376358 + 40267376359.

It is an arithmetic number, because the mean of its divisors is an integer number (40267376359).

Almost surely, 2^80534752717 is an apocalyptic number.

It is an amenable number.

80534752717 is a deficient number, since it is larger than the sum of its proper divisors (1).

80534752717 is an equidigital number, since it uses as much as digits as its factorization.

80534752717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1646400, while the sum is 49.

The spelling of 80534752717 in words is "eighty billion, five hundred thirty-four million, seven hundred fifty-two thousand, seven hundred seventeen".