80277810449 has 4 divisors (see below), whose sum is σ = 80583049536. Its totient is φ = 79972571364.

The previous prime is 80277810377. The next prime is 80277810463. The reversal of 80277810449 is 94401877208.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80277810449 - 2¹² = 80277806353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80277810397 and 80277810406.

It is not an unprimeable number, because it can be changed into a prime (80277810649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152619149 + ... + 152619674.

It is an arithmetic number, because the mean of its divisors is an integer number (20145762384).

Almost surely, 2^80277810449 is an apocalyptic number.

It is an amenable number.

80277810449 is a deficient number, since it is larger than the sum of its proper divisors (305239087).

80277810449 is a wasteful number, since it uses less digits than its factorization.

80277810449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305239086.

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 80277810449 in words is "eighty billion, two hundred seventy-seven million, eight hundred ten thousand, four hundred forty-nine".