1554443434243 has 8 divisors (see below), whose sum is σ = 1853746207488. Its totient is φ = 1274450517384.

The previous prime is 1554443434237. The next prime is 1554443434277. The reversal of 1554443434243 is 3424343444551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1554443434243 is a prime.

It is a super-2 number, since 2×1554443434243² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1554443434193 and 1554443434202.

It is not an unprimeable number, because it can be changed into a prime (1554443437243) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 4827463921 + ... + 4827464242.

It is an arithmetic number, because the mean of its divisors is an integer number (231718275936).

Almost surely, 2^{1554443434243} is an apocalyptic number.

1554443434243 is a deficient number, since it is larger than the sum of its proper divisors (299302773245).

1554443434243 is an equidigital number, since it uses as much as digits as its factorization.

1554443434243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9654928193.

The product of its digits is 5529600, while the sum is 46.

Adding to 1554443434243 its reverse (3424343444551), we get a palindrome (4978786878794).

The spelling of 1554443434243 in words is "one trillion, five hundred fifty-four billion, four hundred forty-three million, four hundred thirty-four thousand, two hundred forty-three".