3842438369172 has 96 divisors (see below), whose sum is σ = 9978068803584. Its totient is φ = 1142859196800.

The previous prime is 3842438369153. The next prime is 3842438369179. The reversal of 3842438369172 is 2719638342483.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3842438369179) 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 31 ways as a sum of consecutive naturals, for example, 3841647 + ... + 4737417.

It is an arithmetic number, because the mean of its divisors is an integer number (103938216704).

Almost surely, 2^{3842438369172} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3842438369172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4989034401792).

3842438369172 is an abundant number, since it is smaller than the sum of its proper divisors (6135630434412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3842438369172 is a wasteful number, since it uses less digits than its factorization.

3842438369172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896709 (or 896707 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 60.

The spelling of 3842438369172 in words is "three trillion, eight hundred forty-two billion, four hundred thirty-eight million, three hundred sixty-nine thousand, one hundred seventy-two".