82018779442084 has 9 divisors (see below), whose sum is σ = 143532895721131. Its totient is φ = 41009380664620.

The previous prime is 82018779442057. The next prime is 82018779442091. The reversal of 82018779442084 is 48024497781028.

The square root of 82018779442084 is 9056422.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15848739 + ... + 20376949.

Almost surely, 2^{82018779442084} is an apocalyptic number.

82018779442084 is the 9056422-nd square number.

It is an amenable number.

82018779442084 is a deficient number, since it is larger than the sum of its proper divisors (61514116279047).

82018779442084 is an frugal number, since it uses more digits than its factorization.

82018779442084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9056426 (or 4528213 counting only the distinct ones).

The product of its (nonzero) digits is 57802752, while the sum is 64.

The spelling of 82018779442084 in words is "eighty-two trillion, eighteen billion, seven hundred seventy-nine million, four hundred forty-two thousand, eighty-four".