818182318197 has 16 divisors (see below), whose sum is σ = 1107459723200. Its totient is φ = 537183833472.

The previous prime is 818182318171. The next prime is 818182318201. The reversal of 818182318197 is 791813281818.

It is not a de Polignac number, because 818182318197 - 2¹⁶ = 818182252661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818182318127) 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, 344679 + ... + 1324827.

It is an arithmetic number, because the mean of its divisors is an integer number (69216232700).

Almost surely, 2^818182318197 is an apocalyptic number.

It is an amenable number.

818182318197 is a deficient number, since it is larger than the sum of its proper divisors (289277405003).

818182318197 is a wasteful number, since it uses less digits than its factorization.

818182318197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984372.

The product of its digits is 1548288, while the sum is 57.

The spelling of 818182318197 in words is "eight hundred eighteen billion, one hundred eighty-two million, three hundred eighteen thousand, one hundred ninety-seven".