82108270993 has 16 divisors (see below), whose sum is σ = 101963223040. Its totient is φ = 64523595600.

The previous prime is 82108270967. The next prime is 82108270997. The reversal of 82108270993 is 39907280128.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82108270993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82108270997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9953223 + ... + 9961468.

It is an arithmetic number, because the mean of its divisors is an integer number (6372701440).

Almost surely, 2^82108270993 is an apocalyptic number.

It is an amenable number.

82108270993 is a deficient number, since it is larger than the sum of its proper divisors (19854952047).

82108270993 is a wasteful number, since it uses less digits than its factorization.

82108270993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19914748.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 82108270993 in words is "eighty-two billion, one hundred eight million, two hundred seventy thousand, nine hundred ninety-three".