80128677456 has 60 divisors (see below), whose sum is σ = 224320785780. Its totient is φ = 26701009920.

The previous prime is 80128677413. The next prime is 80128677463. The reversal of 80128677456 is 65477682108.

80128677456 is a `hidden beast` number, since 8 + 0 + 128 + 67 + 7 + 456 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41161917456 + 38966760000 = 202884^2 + 197400^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 370600 + ... + 545528.

It is an arithmetic number, because the mean of its divisors is an integer number (3738679763).

Almost surely, 2^80128677456 is an apocalyptic number.

It is an amenable number.

80128677456 is an abundant number, since it is smaller than the sum of its proper divisors (144192108324).

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

80128677456 is a wasteful number, since it uses less digits than its factorization.

80128677456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178124 (or 178115 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 80128677456 in words is "eighty billion, one hundred twenty-eight million, six hundred seventy-seven thousand, four hundred fifty-six".