80127232521 has 16 divisors (see below), whose sum is σ = 122102799744. Its totient is φ = 45785430144.

The previous prime is 80127232517. The next prime is 80127232531. The reversal of 80127232521 is 12523272108.

It is not a de Polignac number, because 80127232521 - 2² = 80127232517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80127232531) 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 15 ways as a sum of consecutive naturals, for example, 897711 + ... + 982923.

It is an arithmetic number, because the mean of its divisors is an integer number (7631424984).

Almost surely, 2^80127232521 is an apocalyptic number.

It is an amenable number.

80127232521 is a deficient number, since it is larger than the sum of its proper divisors (41975567223).

80127232521 is a wasteful number, since it uses less digits than its factorization.

80127232521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130000.

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 80127232521 in words is "eighty billion, one hundred twenty-seven million, two hundred thirty-two thousand, five hundred twenty-one".