82879567517 has 4 divisors (see below), whose sum is σ = 82999509696. Its totient is φ = 82759625340.

The previous prime is 82879567499. The next prime is 82879567531. The reversal of 82879567517 is 71576597828.

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.

It is a cyclic number.

It is not a de Polignac number, because 82879567517 - 2⁸ = 82879567261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82879567217) 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 3 ways as a sum of consecutive naturals, for example, 59970053 + ... + 59971434.

It is an arithmetic number, because the mean of its divisors is an integer number (20749877424).

Almost surely, 2^82879567517 is an apocalyptic number.

It is an amenable number.

82879567517 is a deficient number, since it is larger than the sum of its proper divisors (119942179).

82879567517 is a wasteful number, since it uses less digits than its factorization.

82879567517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119942178.

The product of its digits is 59270400, while the sum is 65.

The spelling of 82879567517 in words is "eighty-two billion, eight hundred seventy-nine million, five hundred sixty-seven thousand, five hundred seventeen".