82444921509 has 8 divisors (see below), whose sum is σ = 111789724320. Its totient is φ = 54031699856.

The previous prime is 82444921501. The next prime is 82444921519. The reversal of 82444921509 is 90512944428.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82444921509 - 2³ = 82444921501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82444921501) by changing a digit.

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, 232895082 + ... + 232895435.

It is an arithmetic number, because the mean of its divisors is an integer number (13973715540).

Almost surely, 2^82444921509 is an apocalyptic number.

It is an amenable number.

82444921509 is a deficient number, since it is larger than the sum of its proper divisors (29344802811).

82444921509 is a wasteful number, since it uses less digits than its factorization.

82444921509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465790579.

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 82444921509 in words is "eighty-two billion, four hundred forty-four million, nine hundred twenty-one thousand, five hundred nine".