1181552838443 has 32 divisors (see below), whose sum is σ = 1331900943360. Its totient is φ = 1042918208640.

The previous prime is 1181552838437. The next prime is 1181552838449. The reversal of 1181552838443 is 3448382551811.

It is an interprime number because it is at equal distance from previous prime (1181552838437) and next prime (1181552838449).

It is a cyclic number.

It is not a de Polignac number, because 1181552838443 - 2¹⁰ = 1181552837419 is a prime.

It is a super-4 number, since 4×1181552838443⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1181552838449) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2530505 + ... + 2960837.

It is an arithmetic number, because the mean of its divisors is an integer number (41621904480).

Almost surely, 2^{1181552838443} is an apocalyptic number.

1181552838443 is a deficient number, since it is larger than the sum of its proper divisors (150348104917).

1181552838443 is a wasteful number, since it uses less digits than its factorization.

1181552838443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430539.

The product of its digits is 3686400, while the sum is 53.

The spelling of 1181552838443 in words is "one trillion, one hundred eighty-one billion, five hundred fifty-two million, eight hundred thirty-eight thousand, four hundred forty-three".