80672843684 has 24 divisors (see below), whose sum is σ = 146118496440. Its totient is φ = 38926089216.

The previous prime is 80672843651. The next prime is 80672843747. The reversal of 80672843684 is 48634827608.

It can be written as a sum of positive squares in 4 ways, for example, as 20471314084 + 60201529600 = 143078^2 + 245360^2 .

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, 61574 + ... + 406370.

It is an arithmetic number, because the mean of its divisors is an integer number (6088270685).

Almost surely, 2^80672843684 is an apocalyptic number.

It is an amenable number.

80672843684 is a deficient number, since it is larger than the sum of its proper divisors (65445652756).

80672843684 is a wasteful number, since it uses less digits than its factorization.

80672843684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346847 (or 346845 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 56.

The spelling of 80672843684 in words is "eighty billion, six hundred seventy-two million, eight hundred forty-three thousand, six hundred eighty-four".