3838420944547 has 16 divisors (see below), whose sum is σ = 4444848179200. Its totient is φ = 3246561920160.

The previous prime is 3838420944461. The next prime is 3838420944551. The reversal of 3838420944547 is 7454490248383.

It is a cyclic number.

It is not a de Polignac number, because 3838420944547 - 2¹⁵ = 3838420911779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3838420944577) 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, 1030647 + ... + 2956192.

It is an arithmetic number, because the mean of its divisors is an integer number (277803011200).

Almost surely, 2^{3838420944547} is an apocalyptic number.

3838420944547 is a deficient number, since it is larger than the sum of its proper divisors (606427234653).

3838420944547 is a wasteful number, since it uses less digits than its factorization.

3838420944547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988666.

The product of its (nonzero) digits is 92897280, while the sum is 61.

The spelling of 3838420944547 in words is "three trillion, eight hundred thirty-eight billion, four hundred twenty million, nine hundred forty-four thousand, five hundred forty-seven".