80832507807521 has 2 divisors, whose sum is σ = 80832507807522. Its totient is φ = 80832507807520.

The previous prime is 80832507807509. The next prime is 80832507807539. The reversal of 80832507807521 is 12570870523808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45145444769296 + 35687063038225 = 6719036^2 + 5973865^2 .

It is a cyclic number.

It is not a de Polignac number, because 80832507807521 - 2⁴⁶ = 10463763629857 is a prime.

It is not a weakly prime, because it can be changed into another prime (80832504807521) 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 as a sum of consecutive naturals, namely, 40416253903760 + 40416253903761.

It is an arithmetic number, because the mean of its divisors is an integer number (40416253903761).

Almost surely, 2^{80832507807521} is an apocalyptic number.

It is an amenable number.

80832507807521 is a deficient number, since it is larger than the sum of its proper divisors (1).

80832507807521 is an equidigital number, since it uses as much as digits as its factorization.

80832507807521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7526400, while the sum is 56.

The spelling of 80832507807521 in words is "eighty trillion, eight hundred thirty-two billion, five hundred seven million, eight hundred seven thousand, five hundred twenty-one".