82318746565 has 48 divisors (see below), whose sum is σ = 110988558720. Its totient is φ = 58125459840.

The previous prime is 82318746539. The next prime is 82318746577. The reversal of 82318746565 is 56564781328.

It is a happy number.

It is not a de Polignac number, because 82318746565 - 2⁷ = 82318746437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17590896 + ... + 17595574.

It is an arithmetic number, because the mean of its divisors is an integer number (2312261640).

Almost surely, 2^82318746565 is an apocalyptic number.

It is an amenable number.

82318746565 is a deficient number, since it is larger than the sum of its proper divisors (28669812155).

82318746565 is a wasteful number, since it uses less digits than its factorization.

82318746565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4954 (or 4911 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 55.

The spelling of 82318746565 in words is "eighty-two billion, three hundred eighteen million, seven hundred forty-six thousand, five hundred sixty-five".