82707776577209 has 8 divisors (see below), whose sum is σ = 94612261998528. Its totient is φ = 70825563347760.

The previous prime is 82707776577199. The next prime is 82707776577311. The reversal of 82707776577209 is 90277567770728.

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 82707776577209 - 2¹⁶ = 82707776511673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82707776577509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5568040007 + ... + 5568054860.

It is an arithmetic number, because the mean of its divisors is an integer number (11826532749816).

Almost surely, 2^{82707776577209} is an apocalyptic number.

It is an amenable number.

82707776577209 is a deficient number, since it is larger than the sum of its proper divisors (11904485421319).

82707776577209 is a wasteful number, since it uses less digits than its factorization.

82707776577209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11136095935.

The product of its (nonzero) digits is 1016487360, while the sum is 74.

The spelling of 82707776577209 in words is "eighty-two trillion, seven hundred seven billion, seven hundred seventy-six million, five hundred seventy-seven thousand, two hundred nine".