80668869385 has 8 divisors (see below), whose sum is σ = 104249000520. Its totient is φ = 59570857344.

The previous prime is 80668869371. The next prime is 80668869431. The reversal of 80668869385 is 58396886608.

It can be written as a sum of positive squares in 4 ways, for example, as 218921616 + 80449947769 = 14796^2 + 283637^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80668869385 - 2⁷ = 80668869257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80668869385.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620529700 + ... + 620529829.

It is an arithmetic number, because the mean of its divisors is an integer number (13031125065).

Almost surely, 2^80668869385 is an apocalyptic number.

It is an amenable number.

80668869385 is a deficient number, since it is larger than the sum of its proper divisors (23580131135).

80668869385 is a wasteful number, since it uses less digits than its factorization.

80668869385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241059547.

The product of its (nonzero) digits is 119439360, while the sum is 67.

The spelling of 80668869385 in words is "eighty billion, six hundred sixty-eight million, eight hundred sixty-nine thousand, three hundred eighty-five".