80028106778559 has 32 divisors (see below), whose sum is σ = 108812801986560. Its totient is φ = 52307786166272.

The previous prime is 80028106778527. The next prime is 80028106778567. The reversal of 80028106778559 is 95587760182008.

It is a cyclic number.

It is not a de Polignac number, because 80028106778559 - 2⁵ = 80028106778527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80028106778559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80028106778159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106638562 + ... + 107386400.

It is an arithmetic number, because the mean of its divisors is an integer number (3400400062080).

Almost surely, 2^{80028106778559} is an apocalyptic number.

80028106778559 is a deficient number, since it is larger than the sum of its proper divisors (28784695208001).

80028106778559 is a wasteful number, since it uses less digits than its factorization.

80028106778559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751199.

The product of its (nonzero) digits is 67737600, while the sum is 66.

The spelling of 80028106778559 in words is "eighty trillion, twenty-eight billion, one hundred six million, seven hundred seventy-eight thousand, five hundred fifty-nine".