80917043299 has 2 divisors, whose sum is σ = 80917043300. Its totient is φ = 80917043298.

The previous prime is 80917043281. The next prime is 80917043321. The reversal of 80917043299 is 99234071908.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80917043299 - 2¹³ = 80917035107 is a prime.

It is not a weakly prime, because it can be changed into another prime (80917043209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40458521649 + 40458521650.

It is an arithmetic number, because the mean of its divisors is an integer number (40458521650).

Almost surely, 2^80917043299 is an apocalyptic number.

80917043299 is a deficient number, since it is larger than the sum of its proper divisors (1).

80917043299 is an equidigital number, since it uses as much as digits as its factorization.

80917043299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 80917043299 in words is "eighty billion, nine hundred seventeen million, forty-three thousand, two hundred ninety-nine".