638841144003 has 16 divisors (see below), whose sum is σ = 857686328832. Its totient is φ = 422946720000.

The previous prime is 638841144001. The next prime is 638841144037. The reversal of 638841144003 is 300441148836.

638841144003 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 638841144003 - 2¹ = 638841144001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (638841144001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1312738 + ... + 1732328.

It is an arithmetic number, because the mean of its divisors is an integer number (53605395552).

Almost surely, 2^638841144003 is an apocalyptic number.

638841144003 is a deficient number, since it is larger than the sum of its proper divisors (218845184829).

638841144003 is a wasteful number, since it uses less digits than its factorization.

638841144003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423106.

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 638841144003 in words is "six hundred thirty-eight billion, eight hundred forty-one million, one hundred forty-four thousand, three".