82488979109 has 4 divisors (see below), whose sum is σ = 82489571520. Its totient is φ = 82488386700.

The previous prime is 82488979099. The next prime is 82488979163. The reversal of 82488979109 is 90197988428.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 82488979109 - 2⁸ = 82488978853 is a prime.

It is a super-3 number, since 3×82488979109³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82488979189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39434 + ... + 408084.

It is an arithmetic number, because the mean of its divisors is an integer number (20622392880).

Almost surely, 2^82488979109 is an apocalyptic number.

It is an amenable number.

82488979109 is a deficient number, since it is larger than the sum of its proper divisors (592411).

82488979109 is a wasteful number, since it uses less digits than its factorization.

82488979109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592410.

The product of its (nonzero) digits is 20901888, while the sum is 65.

The spelling of 82488979109 in words is "eighty-two billion, four hundred eighty-eight million, nine hundred seventy-nine thousand, one hundred nine".