80158728643 has 4 divisors (see below), whose sum is σ = 91609975600. Its totient is φ = 68707481688.

The previous prime is 80158728641. The next prime is 80158728647. The reversal of 80158728643 is 34682785108.

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

It is a cyclic number.

It is not a de Polignac number, because 80158728643 - 2¹ = 80158728641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80158728641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5725623468 + ... + 5725623481.

It is an arithmetic number, because the mean of its divisors is an integer number (22902493900).

Almost surely, 2^80158728643 is an apocalyptic number.

80158728643 is a deficient number, since it is larger than the sum of its proper divisors (11451246957).

80158728643 is a wasteful number, since it uses less digits than its factorization.

80158728643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11451246956.

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 80158728643 in words is "eighty billion, one hundred fifty-eight million, seven hundred twenty-eight thousand, six hundred forty-three".