82668286734827 has 4 divisors (see below), whose sum is σ = 85518917311920. Its totient is φ = 79817656157736.

The previous prime is 82668286734823. The next prime is 82668286734833. The reversal of 82668286734827 is 72843768286628.

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 82668286734827 - 2² = 82668286734823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82668286734823) 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, 1425315288503 + ... + 1425315288560.

It is an arithmetic number, because the mean of its divisors is an integer number (21379729327980).

Almost surely, 2^{82668286734827} is an apocalyptic number.

82668286734827 is a deficient number, since it is larger than the sum of its proper divisors (2850630577093).

82668286734827 is a wasteful number, since it uses less digits than its factorization.

82668286734827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850630577092.

The product of its digits is 4161798144, while the sum is 77.

The spelling of 82668286734827 in words is "eighty-two trillion, six hundred sixty-eight billion, two hundred eighty-six million, seven hundred thirty-four thousand, eight hundred twenty-seven".