80808077128 has 16 divisors (see below), whose sum is σ = 151518396780. Its totient is φ = 40403171328.

The previous prime is 80808077113. The next prime is 80808077149. The reversal of 80808077128 is 82177080808.

It can be written as a sum of positive squares in 2 ways, for example, as 80634417444 + 173659684 = 283962^2 + 13178^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467700 + ... + 616732.

Almost surely, 2^80808077128 is an apocalyptic number.

It is an amenable number.

80808077128 is a deficient number, since it is larger than the sum of its proper divisors (70710319652).

80808077128 is a wasteful number, since it uses less digits than its factorization.

80808077128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216816 (or 216812 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 49.

The spelling of 80808077128 in words is "eighty billion, eight hundred eight million, seventy-seven thousand, one hundred twenty-eight".