818926914229 has 4 divisors (see below), whose sum is σ = 824904483084. Its totient is φ = 812949345376.

The previous prime is 818926914193. The next prime is 818926914233. The reversal of 818926914229 is 922419629818.

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

It can be written as a sum of positive squares in 2 ways, for example, as 609508104100 + 209418810129 = 780710^2 + 457623^2 .

It is a cyclic number.

It is not a de Polignac number, because 818926914229 - 2²¹ = 818924817077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818926914329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2988784222 + ... + 2988784495.

It is an arithmetic number, because the mean of its divisors is an integer number (206226120771).

Almost surely, 2^818926914229 is an apocalyptic number.

It is an amenable number.

818926914229 is a deficient number, since it is larger than the sum of its proper divisors (5977568855).

818926914229 is a wasteful number, since it uses less digits than its factorization.

818926914229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5977568854.

The product of its digits is 8957952, while the sum is 61.

The spelling of 818926914229 in words is "eight hundred eighteen billion, nine hundred twenty-six million, nine hundred fourteen thousand, two hundred twenty-nine".