82672153127173 has 4 divisors (see below), whose sum is σ = 85522917028140. Its totient is φ = 79821389226208.

The previous prime is 82672153127171. The next prime is 82672153127243. The reversal of 82672153127173 is 37172135127628.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58641931471204 + 24030221655969 = 7657802^2 + 4902063^2 .

It is a cyclic number.

It is not a de Polignac number, because 82672153127173 - 2¹ = 82672153127171 is a prime.

It is a super-2 number, since 2×82672153127173² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82672153127171) 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, 1425381950440 + ... + 1425381950497.

It is an arithmetic number, because the mean of its divisors is an integer number (21380729257035).

Almost surely, 2^{82672153127173} is an apocalyptic number.

It is an amenable number.

82672153127173 is a deficient number, since it is larger than the sum of its proper divisors (2850763900967).

82672153127173 is a wasteful number, since it uses less digits than its factorization.

82672153127173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850763900966.

The product of its digits is 5927040, while the sum is 55.

The spelling of 82672153127173 in words is "eighty-two trillion, six hundred seventy-two billion, one hundred fifty-three million, one hundred twenty-seven thousand, one hundred seventy-three".