82667712571172 has 24 divisors (see below), whose sum is σ = 152292090985440. Its totient is φ = 39155956934400.

The previous prime is 82667712571141. The next prime is 82667712571181. The reversal of 82667712571172 is 27117521776628.

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, 32563454 + ... + 35010197.

It is an arithmetic number, because the mean of its divisors is an integer number (6345503791060).

Almost surely, 2^{82667712571172} is an apocalyptic number.

It is an amenable number.

82667712571172 is a deficient number, since it is larger than the sum of its proper divisors (69624378414268).

82667712571172 is a wasteful number, since it uses less digits than its factorization.

82667712571172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67589771 (or 67589769 counting only the distinct ones).

The product of its digits is 27659520, while the sum is 62.

The spelling of 82667712571172 in words is "eighty-two trillion, six hundred sixty-seven billion, seven hundred twelve million, five hundred seventy-one thousand, one hundred seventy-two".