82386404586851 has 4 divisors (see below), whose sum is σ = 82911158756352. Its totient is φ = 81861650417352.

The previous prime is 82386404586839. The next prime is 82386404586917. The reversal of 82386404586851 is 15868540468328.

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 82386404586851 - 2¹⁰ = 82386404585827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82386404582851) 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, 262377084515 + ... + 262377084828.

It is an arithmetic number, because the mean of its divisors is an integer number (20727789689088).

Almost surely, 2^{82386404586851} is an apocalyptic number.

82386404586851 is a deficient number, since it is larger than the sum of its proper divisors (524754169501).

82386404586851 is a wasteful number, since it uses less digits than its factorization.

82386404586851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524754169500.

The product of its (nonzero) digits is 353894400, while the sum is 68.

The spelling of 82386404586851 in words is "eighty-two trillion, three hundred eighty-six billion, four hundred four million, five hundred eighty-six thousand, eight hundred fifty-one".