818799593134 has 4 divisors (see below), whose sum is σ = 1228199389704. Its totient is φ = 409399796566.

The previous prime is 818799593093. The next prime is 818799593147. The reversal of 818799593134 is 431395997818.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 818799593134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204699898282 + ... + 204699898285.

It is an arithmetic number, because the mean of its divisors is an integer number (307049847426).

Almost surely, 2^818799593134 is an apocalyptic number.

818799593134 is a deficient number, since it is larger than the sum of its proper divisors (409399796570).

818799593134 is a wasteful number, since it uses less digits than its factorization.

818799593134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409399796569.

The product of its digits is 58786560, while the sum is 67.

The spelling of 818799593134 in words is "eight hundred eighteen billion, seven hundred ninety-nine million, five hundred ninety-three thousand, one hundred thirty-four".