80119000809 has 9 divisors (see below), whose sum is σ = 115728672189. Its totient is φ = 53412101100.

The previous prime is 80119000751. The next prime is 80119000813. The reversal of 80119000809 is 90800091108.

The square root of 80119000809 is 283053.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 80119000809 - 2²⁵ = 80085446377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80119000849) 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 8 ways as a sum of consecutive naturals, for example, 801984 + ... + 896334.

Almost surely, 2^80119000809 is an apocalyptic number.

80119000809 is the 283053-rd square number.

80119000809 is the 141527-th centered octagonal number.

It is an amenable number.

80119000809 is a deficient number, since it is larger than the sum of its proper divisors (35609671380).

80119000809 is an frugal number, since it uses more digits than its factorization.

80119000809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188708 (or 94354 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

Multiplying 80119000809 by its sum of digits (36), we get a square (2884284029124 = 1698318²).

Multiplying 80119000809 by its product of nonzero digits (5184), we get a square (415336900193856 = 20379816²).

The spelling of 80119000809 in words is "eighty billion, one hundred nineteen million, eight hundred nine", and thus it is an aban number.