80791460549 has 2 divisors, whose sum is σ = 80791460550. Its totient is φ = 80791460548.

The previous prime is 80791460543. The next prime is 80791460621. The reversal of 80791460549 is 94506419708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67258791649 + 13532668900 = 259343^2 + 116330^2 .

It is a cyclic number.

It is not a de Polignac number, because 80791460549 - 2⁸ = 80791460293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80791460549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80791460543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40395730274 + 40395730275.

It is an arithmetic number, because the mean of its divisors is an integer number (40395730275).

Almost surely, 2^80791460549 is an apocalyptic number.

It is an amenable number.

80791460549 is a deficient number, since it is larger than the sum of its proper divisors (1).

80791460549 is an equidigital number, since it uses as much as digits as its factorization.

80791460549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 80791460549 in words is "eighty billion, seven hundred ninety-one million, four hundred sixty thousand, five hundred forty-nine".