80759739569 has 4 divisors (see below), whose sum is σ = 80780868096. Its totient is φ = 80738611044.

The previous prime is 80759739553. The next prime is 80759739581. The reversal of 80759739569 is 96593795708.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80759739569 - 2⁴ = 80759739553 is a prime.

It is a super-2 number, since 2×80759739569² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80759739499 and 80759739508.

It is not an unprimeable number, because it can be changed into a prime (80759733569) 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, 10558529 + ... + 10566174.

It is an arithmetic number, because the mean of its divisors is an integer number (20195217024).

Almost surely, 2^80759739569 is an apocalyptic number.

It is an amenable number.

80759739569 is a deficient number, since it is larger than the sum of its proper divisors (21128527).

80759739569 is a wasteful number, since it uses less digits than its factorization.

80759739569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21128526.

The product of its (nonzero) digits is 128595600, while the sum is 68.

The spelling of 80759739569 in words is "eighty billion, seven hundred fifty-nine million, seven hundred thirty-nine thousand, five hundred sixty-nine".