13838178771 has 24 divisors (see below), whose sum is σ = 20196963696. Its totient is φ = 9129326400.

The previous prime is 13838178769. The next prime is 13838178787. The reversal of 13838178771 is 17787183831.

It is not a de Polignac number, because 13838178771 - 2¹ = 13838178769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13838178371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2872761 + ... + 2877573.

It is an arithmetic number, because the mean of its divisors is an integer number (841540154).

Almost surely, 2^13838178771 is an apocalyptic number.

13838178771 is a deficient number, since it is larger than the sum of its proper divisors (6358784925).

13838178771 is a wasteful number, since it uses less digits than its factorization.

13838178771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8083 (or 8080 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 54.

The spelling of 13838178771 in words is "thirteen billion, eight hundred thirty-eight million, one hundred seventy-eight thousand, seven hundred seventy-one".