80449481648 has 40 divisors (see below), whose sum is σ = 156749863200. Its totient is φ = 39998154240.

The previous prime is 80449481587. The next prime is 80449481669. The reversal of 80449481648 is 84618494408.

It is a junction number, because it is equal to n+sod(n) for n = 80449481593 and 80449481602.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 5918636 + ... + 5932212.

It is an arithmetic number, because the mean of its divisors is an integer number (3918746580).

Almost surely, 2^80449481648 is an apocalyptic number.

It is an amenable number.

80449481648 is a deficient number, since it is larger than the sum of its proper divisors (76300381552).

80449481648 is a wasteful number, since it uses less digits than its factorization.

80449481648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15645 (or 15639 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 56.

The spelling of 80449481648 in words is "eighty billion, four hundred forty-nine million, four hundred eighty-one thousand, six hundred forty-eight".