80718707863 has 4 divisors (see below), whose sum is σ = 82900294600. Its totient is φ = 78537121128.

The previous prime is 80718707833. The next prime is 80718707869. The reversal of 80718707863 is 36870781708.

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 80718707863 - 2¹⁷ = 80718576791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80718707869) 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, 1090793313 + ... + 1090793386.

It is an arithmetic number, because the mean of its divisors is an integer number (20725073650).

Almost surely, 2^80718707863 is an apocalyptic number.

80718707863 is a deficient number, since it is larger than the sum of its proper divisors (2181586737).

80718707863 is a wasteful number, since it uses less digits than its factorization.

80718707863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181586736.

The product of its (nonzero) digits is 3161088, while the sum is 55.

The spelling of 80718707863 in words is "eighty billion, seven hundred eighteen million, seven hundred seven thousand, eight hundred sixty-three".