6386161138 has 32 divisors (see below), whose sum is σ = 11357798400. Its totient is φ = 2635292880.

The previous prime is 6386161127. The next prime is 6386161139. The reversal of 6386161138 is 8311616836.

6386161138 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 6386161094 and 6386161103.

It is not an unprimeable number, because it can be changed into a prime (6386161139) 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, 49395 + ... + 123337.

It is an arithmetic number, because the mean of its divisors is an integer number (354931200).

Almost surely, 2^6386161138 is an apocalyptic number.

6386161138 is a deficient number, since it is larger than the sum of its proper divisors (4971637262).

6386161138 is a wasteful number, since it uses less digits than its factorization.

6386161138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74182.

The product of its digits is 124416, while the sum is 43.

The square root of 6386161138 is about 79913.4603055080. The cubic root of 6386161138 is about 1855.2963529982.

The spelling of 6386161138 in words is "six billion, three hundred eighty-six million, one hundred sixty-one thousand, one hundred thirty-eight".