82343640047 has 4 divisors (see below), whose sum is σ = 82349094360. Its totient is φ = 82338185736.

The previous prime is 82343640023. The next prime is 82343640053. The reversal of 82343640047 is 74004634328.

It is a happy number.

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 82343640047 - 2¹⁰ = 82343639023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82343639986 and 82343640013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82343640077) 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, 2704448 + ... + 2734725.

It is an arithmetic number, because the mean of its divisors is an integer number (20587273590).

Almost surely, 2^82343640047 is an apocalyptic number.

82343640047 is a deficient number, since it is larger than the sum of its proper divisors (5454313).

82343640047 is a wasteful number, since it uses less digits than its factorization.

82343640047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5454312.

The product of its (nonzero) digits is 387072, while the sum is 41.

The spelling of 82343640047 in words is "eighty-two billion, three hundred forty-three million, six hundred forty thousand, forty-seven".