80105890434 has 64 divisors (see below), whose sum is σ = 172959494400. Its totient is φ = 24643657728.

The previous prime is 80105890433. The next prime is 80105890441. The reversal of 80105890434 is 43409850108.

It is not an unprimeable number, because it can be changed into a prime (80105890433) 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 in 31 ways as a sum of consecutive naturals, for example, 1041307 + ... + 1115585.

It is an arithmetic number, because the mean of its divisors is an integer number (2702492100).

Almost surely, 2^80105890434 is an apocalyptic number.

80105890434 is an abundant number, since it is smaller than the sum of its proper divisors (92853603966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80105890434 is a wasteful number, since it uses less digits than its factorization.

80105890434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74507.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 80105890434 in words is "eighty billion, one hundred five million, eight hundred ninety thousand, four hundred thirty-four".