82179212493 has 16 divisors (see below), whose sum is σ = 125234159616. Its totient is φ = 46956290160.

The previous prime is 82179212477. The next prime is 82179212513. The reversal of 82179212493 is 39421297128.

It is not a de Polignac number, because 82179212493 - 2⁴ = 82179212477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82179212443) 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, 192328 + ... + 448718.

It is an arithmetic number, because the mean of its divisors is an integer number (7827134976).

Almost surely, 2^82179212493 is an apocalyptic number.

It is an amenable number.

82179212493 is a deficient number, since it is larger than the sum of its proper divisors (43054947123).

82179212493 is a wasteful number, since it uses less digits than its factorization.

82179212493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271664.

The product of its digits is 435456, while the sum is 48.

The spelling of 82179212493 in words is "eighty-two billion, one hundred seventy-nine million, two hundred twelve thousand, four hundred ninety-three".