80492445277 has 2 divisors, whose sum is σ = 80492445278. Its totient is φ = 80492445276.

The previous prime is 80492445133. The next prime is 80492445287. The reversal of 80492445277 is 77254429408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79743547321 + 748897956 = 282389^2 + 27366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80492445277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80492445287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40246222638 + 40246222639.

It is an arithmetic number, because the mean of its divisors is an integer number (40246222639).

Almost surely, 2^80492445277 is an apocalyptic number.

It is an amenable number.

80492445277 is a deficient number, since it is larger than the sum of its proper divisors (1).

80492445277 is an equidigital number, since it uses as much as digits as its factorization.

80492445277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 80492445277 in words is "eighty billion, four hundred ninety-two million, four hundred forty-five thousand, two hundred seventy-seven".