82102969818 has 16 divisors (see below), whose sum is σ = 182451044160. Its totient is φ = 27367656588.

The previous prime is 82102969717. The next prime is 82102969859. The reversal of 82102969818 is 81896920128.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1520425367 = 82102969818 / (8 + 2 + 1 + 0 + 2 + 9 + 6 + 9 + 8 + 1 + 8).

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 7 ways as a sum of consecutive naturals, for example, 760212630 + ... + 760212737.

It is an arithmetic number, because the mean of its divisors is an integer number (11403190260).

Almost surely, 2^82102969818 is an apocalyptic number.

82102969818 is an abundant number, since it is smaller than the sum of its proper divisors (100348074342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82102969818 is a wasteful number, since it uses less digits than its factorization.

82102969818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520425378 (or 1520425372 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 54.

The spelling of 82102969818 in words is "eighty-two billion, one hundred two million, nine hundred sixty-nine thousand, eight hundred eighteen".