8838138886 has 4 divisors (see below), whose sum is σ = 13257208332. Its totient is φ = 4419069442.

The previous prime is 8838138863. The next prime is 8838138889. The reversal of 8838138886 is 6888318388.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×8838138886² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8838138889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2209534720 + ... + 2209534723.

It is an arithmetic number, because the mean of its divisors is an integer number (3314302083).

Almost surely, 2^8838138886 is an apocalyptic number.

8838138886 is a deficient number, since it is larger than the sum of its proper divisors (4419069446).

8838138886 is a wasteful number, since it uses less digits than its factorization.

8838138886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4419069445.

The product of its digits is 14155776, while the sum is 61.

The square root of 8838138886 is about 94011.3763647783. The cubic root of 8838138886 is about 2067.5385092548.

The spelling of 8838138886 in words is "eight billion, eight hundred thirty-eight million, one hundred thirty-eight thousand, eight hundred eighty-six".