82865314547 has 4 divisors (see below), whose sum is σ = 82865957856. Its totient is φ = 82864671240.

The previous prime is 82865314541. The next prime is 82865314579. The reversal of 82865314547 is 74541356828.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 82865314547 - 2¹⁰ = 82865313523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82865314541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54443 + ... + 410724.

It is an arithmetic number, because the mean of its divisors is an integer number (20716489464).

Almost surely, 2^82865314547 is an apocalyptic number.

82865314547 is a deficient number, since it is larger than the sum of its proper divisors (643309).

82865314547 is a wasteful number, since it uses less digits than its factorization.

82865314547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643308.

The product of its digits is 6451200, while the sum is 53.

The spelling of 82865314547 in words is "eighty-two billion, eight hundred sixty-five million, three hundred fourteen thousand, five hundred forty-seven".