1438449375043 has 4 divisors (see below), whose sum is σ = 1438680606048. Its totient is φ = 1438218144040.

The previous prime is 1438449375029. The next prime is 1438449375047. The reversal of 1438449375043 is 3405739448341.

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

It is a cyclic number.

It is not a de Polignac number, because 1438449375043 - 2²⁹ = 1437912504131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1438449375047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115606171 + ... + 115618612.

It is an arithmetic number, because the mean of its divisors is an integer number (359670151512).

Almost surely, 2^{1438449375043} is an apocalyptic number.

1438449375043 is a deficient number, since it is larger than the sum of its proper divisors (231231005).

1438449375043 is an equidigital number, since it uses as much as digits as its factorization.

1438449375043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231231004.

The product of its (nonzero) digits is 17418240, while the sum is 55.

The spelling of 1438449375043 in words is "one trillion, four hundred thirty-eight billion, four hundred forty-nine million, three hundred seventy-five thousand, forty-three".