1438041033681 has 8 divisors (see below), whose sum is σ = 2191300622784. Its totient is φ = 821737733520.

The previous prime is 1438041033631. The next prime is 1438041033707. The reversal of 1438041033681 is 1863301408341.

It is a happy number.

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

It is not a de Polignac number, because 1438041033681 - 2¹⁷ = 1438040902609 is a prime.

It is a super-2 number, since 2×1438041033681² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1438041033601) 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 7 ways as a sum of consecutive naturals, for example, 34239072210 + ... + 34239072251.

It is an arithmetic number, because the mean of its divisors is an integer number (273912577848).

Almost surely, 2^{1438041033681} is an apocalyptic number.

It is an amenable number.

1438041033681 is a deficient number, since it is larger than the sum of its proper divisors (753259589103).

1438041033681 is an equidigital number, since it uses as much as digits as its factorization.

1438041033681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68478144471.

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 1438041033681 in words is "one trillion, four hundred thirty-eight billion, forty-one million, thirty-three thousand, six hundred eighty-one".