80480278129 has 4 divisors (see below), whose sum is σ = 80593791220. Its totient is φ = 80366765040.

The previous prime is 80480278117. The next prime is 80480278139. The reversal of 80480278129 is 92187208408.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38896911729 + 41583366400 = 197223^2 + 203920^2 .

It is a cyclic number.

It is not a de Polignac number, because 80480278129 - 2⁵ = 80480278097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80480278139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56755482 + ... + 56756899.

It is an arithmetic number, because the mean of its divisors is an integer number (20148447805).

Almost surely, 2^80480278129 is an apocalyptic number.

It is an amenable number.

80480278129 is a deficient number, since it is larger than the sum of its proper divisors (113513091).

80480278129 is a wasteful number, since it uses less digits than its factorization.

80480278129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113513090.

The product of its (nonzero) digits is 516096, while the sum is 49.

The spelling of 80480278129 in words is "eighty billion, four hundred eighty million, two hundred seventy-eight thousand, one hundred twenty-nine".