80716429429 has 2 divisors, whose sum is σ = 80716429430. Its totient is φ = 80716429428.

The previous prime is 80716429427. The next prime is 80716429457. The reversal of 80716429429 is 92492461708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43052100100 + 37664329329 = 207490^2 + 194073^2 .

It is a cyclic number.

It is not a de Polignac number, because 80716429429 - 2¹ = 80716429427 is a prime.

Together with 80716429427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80716429427) 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, 40358214714 + 40358214715.

It is an arithmetic number, because the mean of its divisors is an integer number (40358214715).

Almost surely, 2^80716429429 is an apocalyptic number.

It is an amenable number.

80716429429 is a deficient number, since it is larger than the sum of its proper divisors (1).

80716429429 is an equidigital number, since it uses as much as digits as its factorization.

80716429429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 80716429429 in words is "eighty billion, seven hundred sixteen million, four hundred twenty-nine thousand, four hundred twenty-nine".