82478643832 has 32 divisors (see below), whose sum is σ = 171044596800. Its totient is φ = 37038225024.

The previous prime is 82478643823. The next prime is 82478643857. The reversal of 82478643832 is 23834687428.

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 7 ways as a sum of consecutive naturals, for example, 10713232 + ... + 10720927.

It is an arithmetic number, because the mean of its divisors is an integer number (5345143650).

Almost surely, 2^82478643832 is an apocalyptic number.

It is an amenable number.

82478643832 is an abundant number, since it is smaller than the sum of its proper divisors (88565952968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82478643832 is a wasteful number, since it uses less digits than its factorization.

82478643832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21434215 (or 21434211 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 55.

The spelling of 82478643832 in words is "eighty-two billion, four hundred seventy-eight million, six hundred forty-three thousand, eight hundred thirty-two".