80247204450569 has 8 divisors (see below), whose sum is σ = 86420906242440. Its totient is φ = 74073622646016.

The previous prime is 80247204450559. The next prime is 80247204450601. The reversal of 80247204450569 is 96505440274208.

It can be written as a sum of positive squares in 4 ways, for example, as 345720480400 + 79901483970169 = 587980^2 + 8938763^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 80247204450569 - 2³² = 80242909483273 is a prime.

It is a super-2 number, since 2×80247204450569² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80247204450509) 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, 28605392 + ... + 31285185.

It is an arithmetic number, because the mean of its divisors is an integer number (10802613280305).

Almost surely, 2^{80247204450569} is an apocalyptic number.

It is an amenable number.

80247204450569 is a deficient number, since it is larger than the sum of its proper divisors (6173701791871).

80247204450569 is a wasteful number, since it uses less digits than its factorization.

80247204450569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59993659.

The product of its (nonzero) digits is 19353600, while the sum is 56.

The spelling of 80247204450569 in words is "eighty trillion, two hundred forty-seven billion, two hundred four million, four hundred fifty thousand, five hundred sixty-nine".