80065819457 has 8 divisors (see below), whose sum is σ = 86803420200. Its totient is φ = 73410888960.

The previous prime is 80065819403. The next prime is 80065819487. The reversal of 80065819457 is 75491856008.

It can be written as a sum of positive squares in 4 ways, for example, as 205320241 + 79860499216 = 14329^2 + 282596^2 .

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 80065819457 - 2⁸ = 80065819201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80065819399 and 80065819408.

It is not an unprimeable number, because it can be changed into a prime (80065819487) 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, 20665544 + ... + 20669417.

It is an arithmetic number, because the mean of its divisors is an integer number (10850427525).

Almost surely, 2^80065819457 is an apocalyptic number.

It is an amenable number.

80065819457 is a deficient number, since it is larger than the sum of its proper divisors (6737600743).

80065819457 is a wasteful number, since it uses less digits than its factorization.

80065819457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41335123.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 80065819457 in words is "eighty billion, sixty-five million, eight hundred nineteen thousand, four hundred fifty-seven".