80144486717 has 4 divisors (see below), whose sum is σ = 80607749820. Its totient is φ = 79681223616.

The previous prime is 80144486711. The next prime is 80144486743. The reversal of 80144486717 is 71768444108.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64545975481 + 15598511236 = 254059^2 + 124894^2 .

It is a cyclic number.

It is not a de Polignac number, because 80144486717 - 2²⁸ = 79876051261 is a prime.

It is a super-2 number, since 2×80144486717² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80144486711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231631292 + ... + 231631637.

It is an arithmetic number, because the mean of its divisors is an integer number (20151937455).

Almost surely, 2^80144486717 is an apocalyptic number.

It is an amenable number.

80144486717 is a deficient number, since it is larger than the sum of its proper divisors (463263103).

80144486717 is a wasteful number, since it uses less digits than its factorization.

80144486717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463263102.

The product of its (nonzero) digits is 1204224, while the sum is 50.

The spelling of 80144486717 in words is "eighty billion, one hundred forty-four million, four hundred eighty-six thousand, seven hundred seventeen".