82180614867 has 16 divisors (see below), whose sum is σ = 120229407648. Its totient is φ = 49618483200.

The previous prime is 82180614781. The next prime is 82180614869. The reversal of 82180614867 is 76841608128.

It is not a de Polignac number, because 82180614867 - 2⁷ = 82180614739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82180614869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19877134 + ... + 19881267.

It is an arithmetic number, because the mean of its divisors is an integer number (7514337978).

Almost surely, 2^82180614867 is an apocalyptic number.

82180614867 is a deficient number, since it is larger than the sum of its proper divisors (38048792781).

82180614867 is a wasteful number, since it uses less digits than its factorization.

82180614867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39758470.

The product of its (nonzero) digits is 1032192, while the sum is 51.

The spelling of 82180614867 in words is "eighty-two billion, one hundred eighty million, six hundred fourteen thousand, eight hundred sixty-seven".