8128480820867 has 8 divisors (see below), whose sum is σ = 8867504755200. Its totient is φ = 7389468741960.

The previous prime is 8128480820861. The next prime is 8128480820879. The reversal of 8128480820867 is 7680280848218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8128480820867 - 2⁴ = 8128480820851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8128480820861) 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 7 ways as a sum of consecutive naturals, for example, 1498763 + ... + 4301540.

It is an arithmetic number, because the mean of its divisors is an integer number (1108438094400).

Almost surely, 2^{8128480820867} is an apocalyptic number.

8128480820867 is a deficient number, since it is larger than the sum of its proper divisors (739023934333).

8128480820867 is a wasteful number, since it uses less digits than its factorization.

8128480820867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5927713.

The product of its (nonzero) digits is 22020096, while the sum is 62.

The spelling of 8128480820867 in words is "eight trillion, one hundred twenty-eight billion, four hundred eighty million, eight hundred twenty thousand, eight hundred sixty-seven".