82671331238687 has 16 divisors (see below), whose sum is σ = 87178495219200. Its totient is φ = 78179787671040.

The previous prime is 82671331238677. The next prime is 82671331238689. The reversal of 82671331238687 is 78683213317628.

It is a cyclic number.

It is not a de Polignac number, because 82671331238687 - 2²⁴ = 82671314461471 is a prime.

It is a super-3 number, since 3×82671331238687³ (a number of 43 digits) contains 333 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 (82671331238689) 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, 190089512 + ... + 190523922.

It is an arithmetic number, because the mean of its divisors is an integer number (5448655951200).

Almost surely, 2^{82671331238687} is an apocalyptic number.

82671331238687 is a deficient number, since it is larger than the sum of its proper divisors (4507163980513).

82671331238687 is a wasteful number, since it uses less digits than its factorization.

82671331238687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452366.

The product of its digits is 97542144, while the sum is 65.

The spelling of 82671331238687 in words is "eighty-two trillion, six hundred seventy-one billion, three hundred thirty-one million, two hundred thirty-eight thousand, six hundred eighty-seven".