82430473644 has 36 divisors (see below), whose sum is σ = 208984246744. Its totient is φ = 27395286912.

The previous prime is 82430473583. The next prime is 82430473661. The reversal of 82430473644 is 44637403428.

82430473644 is a `hidden beast` number, since 8 + 243 + 0 + 47 + 364 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 82430473644.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3385102 + ... + 3409365.

Almost surely, 2^82430473644 is an apocalyptic number.

It is an amenable number.

82430473644 is an abundant number, since it is smaller than the sum of its proper divisors (126553773100).

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

82430473644 is a wasteful number, since it uses less digits than its factorization.

82430473644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6794814 (or 6794809 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 45.

The spelling of 82430473644 in words is "eighty-two billion, four hundred thirty million, four hundred seventy-three thousand, six hundred forty-four".