80752782803561 has 4 divisors (see below), whose sum is σ = 88093944876624. Its totient is φ = 73411620730500.

The previous prime is 80752782803557. The next prime is 80752782803587. The reversal of 80752782803561 is 16530828725708.

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 80752782803561 - 2² = 80752782803557 is a prime.

It is a super-2 number, since 2×80752782803561² (a number of 29 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 = 80752782803494 and 80752782803503.

It is not an unprimeable number, because it can be changed into a prime (80752782803531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3670581036515 + ... + 3670581036536.

It is an arithmetic number, because the mean of its divisors is an integer number (22023486219156).

Almost surely, 2^{80752782803561} is an apocalyptic number.

It is an amenable number.

80752782803561 is a deficient number, since it is larger than the sum of its proper divisors (7341162073063).

80752782803561 is a wasteful number, since it uses less digits than its factorization.

80752782803561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7341162073062.

The product of its (nonzero) digits is 45158400, while the sum is 62.

The spelling of 80752782803561 in words is "eighty trillion, seven hundred fifty-two billion, seven hundred eighty-two million, eight hundred three thousand, five hundred sixty-one".