80540244069 has 8 divisors (see below), whose sum is σ = 107442098400. Its totient is φ = 53665942896.

The previous prime is 80540244023. The next prime is 80540244079. The reversal of 80540244069 is 96044204508.

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

It is not a de Polignac number, because 80540244069 - 2¹⁶ = 80540178533 is a prime.

It is a super-2 number, since 2×80540244069² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80540244069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80540244019) 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, 6881467 + ... + 6893160.

It is an arithmetic number, because the mean of its divisors is an integer number (13430262300).

Almost surely, 2^80540244069 is an apocalyptic number.

It is an amenable number.

80540244069 is a deficient number, since it is larger than the sum of its proper divisors (26901854331).

80540244069 is a wasteful number, since it uses less digits than its factorization.

80540244069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13776579.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 80540244069 in words is "eighty billion, five hundred forty million, two hundred forty-four thousand, sixty-nine".