82102969817 has 16 divisors (see below), whose sum is σ = 89826959040. Its totient is φ = 74422540800.

The previous prime is 82102969717. The next prime is 82102969859. The reversal of 82102969817 is 71896920128.

It is a cyclic number.

It is not a de Polignac number, because 82102969817 - 2¹⁴ = 82102953433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82102969517) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10145909 + ... + 10153997.

It is an arithmetic number, because the mean of its divisors is an integer number (5614184940).

Almost surely, 2^82102969817 is an apocalyptic number.

It is an amenable number.

82102969817 is a deficient number, since it is larger than the sum of its proper divisors (7723989223).

82102969817 is a wasteful number, since it uses less digits than its factorization.

82102969817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10664.

The product of its (nonzero) digits is 870912, while the sum is 53.

The spelling of 82102969817 in words is "eighty-two billion, one hundred two million, nine hundred sixty-nine thousand, eight hundred seventeen".