80491259085 has 8 divisors (see below), whose sum is σ = 128786014560. Its totient is φ = 42928671504.

The previous prime is 80491259077. The next prime is 80491259089. The reversal of 80491259085 is 58095219408.

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

It is not a de Polignac number, because 80491259085 - 2³ = 80491259077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80491259089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2683041955 + ... + 2683041984.

It is an arithmetic number, because the mean of its divisors is an integer number (16098251820).

Almost surely, 2^80491259085 is an apocalyptic number.

It is an amenable number.

80491259085 is a deficient number, since it is larger than the sum of its proper divisors (48294755475).

80491259085 is a wasteful number, since it uses less digits than its factorization.

80491259085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5366083947.

The product of its (nonzero) digits is 1036800, while the sum is 51.

The spelling of 80491259085 in words is "eighty billion, four hundred ninety-one million, two hundred fifty-nine thousand, eighty-five".