82171470292 has 48 divisors (see below), whose sum is σ = 147264251904. Its totient is φ = 40108796000.

The previous prime is 82171470253. The next prime is 82171470299. The reversal of 82171470292 is 29207417128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82171470299) 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, 18711417 + ... + 18715807.

It is an arithmetic number, because the mean of its divisors is an integer number (3068005248).

Almost surely, 2^82171470292 is an apocalyptic number.

It is an amenable number.

82171470292 is a deficient number, since it is larger than the sum of its proper divisors (65092781612).

82171470292 is a wasteful number, since it uses less digits than its factorization.

82171470292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100 (or 5098 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 82171470292 in words is "eighty-two billion, one hundred seventy-one million, four hundred seventy thousand, two hundred ninety-two".