80716982688 has 36 divisors (see below), whose sum is σ = 229538920338. Its totient is φ = 26905660800.

The previous prime is 80716982677. The next prime is 80716982729. The reversal of 80716982688 is 88628961708.

It can be written as a sum of positive squares in only one way, i.e., 79314330384 + 1402652304 = 281628^2 + 37452^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 140133363 + ... + 140133938.

Almost surely, 2^80716982688 is an apocalyptic number.

It is an amenable number.

80716982688 is an abundant number, since it is smaller than the sum of its proper divisors (148821937650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80716982688 is a wasteful number, since it uses less digits than its factorization.

80716982688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280267317 (or 280267306 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 63.

The spelling of 80716982688 in words is "eighty billion, seven hundred sixteen million, nine hundred eighty-two thousand, six hundred eighty-eight".