1438818115801 has 16 divisors (see below), whose sum is σ = 1664199414720. Its totient is φ = 1229408340480.

The previous prime is 1438818115793. The next prime is 1438818115831. The reversal of 1438818115801 is 1085118188341.

It is a cyclic number.

It is not a de Polignac number, because 1438818115801 - 2³ = 1438818115793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1438818115831) 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 15 ways as a sum of consecutive naturals, for example, 5067636 + ... + 5344021.

It is an arithmetic number, because the mean of its divisors is an integer number (104012463420).

Almost surely, 2^{1438818115801} is an apocalyptic number.

1438818115801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1438818115801 is a deficient number, since it is larger than the sum of its proper divisors (225381298919).

1438818115801 is a wasteful number, since it uses less digits than its factorization.

1438818115801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10412424.

The product of its (nonzero) digits is 245760, while the sum is 49.

The spelling of 1438818115801 in words is "one trillion, four hundred thirty-eight billion, eight hundred eighteen million, one hundred fifteen thousand, eight hundred one".