3838278788181 has 24 divisors (see below), whose sum is σ = 5550635282400. Its totient is φ = 2555874220896.

The previous prime is 3838278788161. The next prime is 3838278788191. The reversal of 3838278788181 is 1818878728383.

3838278788181 is a `hidden beast` number, since 38 + 382 + 78 + 78 + 8 + 1 + 81 = 666.

3838278788181 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3838278788181 - 2²³ = 3838270399573 is a prime.

It is a super-2 number, since 2×3838278788181² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3838278788131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61873726 + ... + 61935728.

It is an arithmetic number, because the mean of its divisors is an integer number (231276470100).

Almost surely, 2^{3838278788181} is an apocalyptic number.

It is an amenable number.

3838278788181 is a deficient number, since it is larger than the sum of its proper divisors (1712356494219).

3838278788181 is a wasteful number, since it uses less digits than its factorization.

3838278788181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69905 (or 69902 counting only the distinct ones).

The product of its digits is 231211008, while the sum is 72.

The spelling of 3838278788181 in words is "three trillion, eight hundred thirty-eight billion, two hundred seventy-eight million, seven hundred eighty-eight thousand, one hundred eighty-one".