82672228107571 has 4 divisors (see below), whose sum is σ = 82672247061432. Its totient is φ = 82672209153712.

The previous prime is 82672228107529. The next prime is 82672228107593. The reversal of 82672228107571 is 17570182227628.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82672228107571 - 2²¹ = 82672226010419 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82672228177571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730356 + ... + 12879358.

It is an arithmetic number, because the mean of its divisors is an integer number (20668061765358).

Almost surely, 2^{82672228107571} is an apocalyptic number.

82672228107571 is a deficient number, since it is larger than the sum of its proper divisors (18953861).

82672228107571 is a wasteful number, since it uses less digits than its factorization.

82672228107571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18953860.

The product of its (nonzero) digits is 10536960, while the sum is 58.

The spelling of 82672228107571 in words is "eighty-two trillion, six hundred seventy-two billion, two hundred twenty-eight million, one hundred seven thousand, five hundred seventy-one".