80504368128 has 154 divisors (see below), whose sum is σ = 241287038124. Its totient is φ = 26834540544.

The previous prime is 80504368103. The next prime is 80504368129. The reversal of 80504368128 is 82186340508.

80504368128 is a `hidden beast` number, since 80 + 504 + 3 + 68 + 1 + 2 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (80504368129) by changing a digit.

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 13 ways as a sum of consecutive naturals, for example, 692575 + ... + 800417.

Almost surely, 2^80504368128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80504368128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120643519062).

80504368128 is an abundant number, since it is smaller than the sum of its proper divisors (160782669996).

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

80504368128 is an equidigital number, since it uses as much as digits as its factorization.

80504368128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107881 (or 107848 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 80504368128 in words is "eighty billion, five hundred four million, three hundred sixty-eight thousand, one hundred twenty-eight".