2321738818336 has 72 divisors (see below), whose sum is σ = 5321569965516. Its totient is φ = 994212495360.

The previous prime is 2321738818313. The next prime is 2321738818363. The reversal of 2321738818336 is 6338188371232.

It can be written as a sum of positive squares in 2 ways, for example, as 2139959379600 + 181779438736 = 1462860^2 + 426356^2 .

It is a super-2 number, since 2×2321738818336² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1299916 + ... + 2516596.

Almost surely, 2^{2321738818336} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2321738818336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2660784982758).

2321738818336 is an abundant number, since it is smaller than the sum of its proper divisors (2999831147180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2321738818336 is a wasteful number, since it uses less digits than its factorization.

2321738818336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217922 (or 1217907 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 55.

It can be divided in two parts, 232173 and 8818336, that added together give a palindrome (9050509).

The spelling of 2321738818336 in words is "two trillion, three hundred twenty-one billion, seven hundred thirty-eight million, eight hundred eighteen thousand, three hundred thirty-six".