82474905868 has 24 divisors (see below), whose sum is σ = 144787616064. Its totient is φ = 41107083600.

The previous prime is 82474905853. The next prime is 82474905871. The reversal of 82474905868 is 86850947428.

It is a super-2 number, since 2×82474905868² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 7171603 + ... + 7183093.

It is an arithmetic number, because the mean of its divisors is an integer number (6032817336).

Almost surely, 2^82474905868 is an apocalyptic number.

It is an amenable number.

82474905868 is a deficient number, since it is larger than the sum of its proper divisors (62312710196).

82474905868 is a wasteful number, since it uses less digits than its factorization.

82474905868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17013 (or 17011 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 61.

The spelling of 82474905868 in words is "eighty-two billion, four hundred seventy-four million, nine hundred five thousand, eight hundred sixty-eight".