80105890423 has 16 divisors (see below), whose sum is σ = 90202162176. Its totient is φ = 70584766560.

The previous prime is 80105890421. The next prime is 80105890433. The reversal of 80105890423 is 32409850108.

It is a cyclic number.

It is not a de Polignac number, because 80105890423 - 2¹ = 80105890421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80105890421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126015 + ... + 419632.

It is an arithmetic number, because the mean of its divisors is an integer number (5637635136).

Almost surely, 2^80105890423 is an apocalyptic number.

80105890423 is a deficient number, since it is larger than the sum of its proper divisors (10096271753).

80105890423 is a wasteful number, since it uses less digits than its factorization.

80105890423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546174.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 80105890423 in words is "eighty billion, one hundred five million, eight hundred ninety thousand, four hundred twenty-three".