82418808623 has 4 divisors (see below), whose sum is σ = 82559216040. Its totient is φ = 82278401208.

The previous prime is 82418808613. The next prime is 82418808643. The reversal of 82418808623 is 32680881428.

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 82418808623 - 2⁶ = 82418808559 is a prime.

It is a super-2 number, since 2×82418808623² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82418808613) 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, 70202828 + ... + 70204001.

It is an arithmetic number, because the mean of its divisors is an integer number (20639804010).

Almost surely, 2^82418808623 is an apocalyptic number.

82418808623 is a deficient number, since it is larger than the sum of its proper divisors (140407417).

82418808623 is a wasteful number, since it uses less digits than its factorization.

82418808623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140407416.

The product of its (nonzero) digits is 1179648, while the sum is 50.

The spelling of 82418808623 in words is "eighty-two billion, four hundred eighteen million, eight hundred eight thousand, six hundred twenty-three".