80976344497 has 2 divisors, whose sum is σ = 80976344498. Its totient is φ = 80976344496.

The previous prime is 80976344459. The next prime is 80976344543. The reversal of 80976344497 is 79444367908.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43029694096 + 37946650401 = 207436^2 + 194799^2 .

It is a cyclic number.

It is not a de Polignac number, because 80976344497 - 2¹⁹ = 80975820209 is a prime.

It is not a weakly prime, because it can be changed into another prime (80976324497) 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, 40488172248 + 40488172249.

It is an arithmetic number, because the mean of its divisors is an integer number (40488172249).

Almost surely, 2^80976344497 is an apocalyptic number.

It is an amenable number.

80976344497 is a deficient number, since it is larger than the sum of its proper divisors (1).

80976344497 is an equidigital number, since it uses as much as digits as its factorization.

80976344497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36578304, while the sum is 61.

The spelling of 80976344497 in words is "eighty billion, nine hundred seventy-six million, three hundred forty-four thousand, four hundred ninety-seven".