80780844299 has 2 divisors, whose sum is σ = 80780844300. Its totient is φ = 80780844298.

The previous prime is 80780844251. The next prime is 80780844311. The reversal of 80780844299 is 99244808708.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80780844299 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (80782844299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40390422149 + 40390422150.

It is an arithmetic number, because the mean of its divisors is an integer number (40390422150).

Almost surely, 2^80780844299 is an apocalyptic number.

80780844299 is a deficient number, since it is larger than the sum of its proper divisors (1).

80780844299 is an equidigital number, since it uses as much as digits as its factorization.

80780844299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9289728, while the sum is 59.

The spelling of 80780844299 in words is "eighty billion, seven hundred eighty million, eight hundred forty-four thousand, two hundred ninety-nine".