80677695773959 has 4 divisors (see below), whose sum is σ = 83280202089280. Its totient is φ = 78075189458640.

The previous prime is 80677695773891. The next prime is 80677695774043. The reversal of 80677695773959 is 95937759677608.

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 80677695773959 - 2²⁷ = 80677561556231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80677695773959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80677695773159) 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, 1301253157614 + ... + 1301253157675.

It is an arithmetic number, because the mean of its divisors is an integer number (20820050522320).

Almost surely, 2^{80677695773959} is an apocalyptic number.

80677695773959 is a deficient number, since it is larger than the sum of its proper divisors (2602506315321).

80677695773959 is a wasteful number, since it uses less digits than its factorization.

80677695773959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602506315320.

The product of its (nonzero) digits is 37807106400, while the sum is 88.

The spelling of 80677695773959 in words is "eighty trillion, six hundred seventy-seven billion, six hundred ninety-five million, seven hundred seventy-three thousand, nine hundred fifty-nine".