82173424279 has 2 divisors, whose sum is σ = 82173424280. Its totient is φ = 82173424278.

The previous prime is 82173424253. The next prime is 82173424327. The reversal of 82173424279 is 97242437128.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82173424279 - 2²⁹ = 81636553367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82173424379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41086712139 + 41086712140.

It is an arithmetic number, because the mean of its divisors is an integer number (41086712140).

Almost surely, 2^82173424279 is an apocalyptic number.

82173424279 is a deficient number, since it is larger than the sum of its proper divisors (1).

82173424279 is an equidigital number, since it uses as much as digits as its factorization.

82173424279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 49.

The spelling of 82173424279 in words is "eighty-two billion, one hundred seventy-three million, four hundred twenty-four thousand, two hundred seventy-nine".