8348748138 has 16 divisors (see below), whose sum is σ = 18552773760. Its totient is φ = 2782916028.

The previous prime is 8348748137. The next prime is 8348748209. The reversal of 8348748138 is 8318478438.

It is a happy number.

8348748138 is a `hidden beast` number, since 83 + 4 + 87 + 481 + 3 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 154606447 = 8348748138 / (8 + 3 + 4 + 8 + 7 + 4 + 8 + 1 + 3 + 8).

It is not an unprimeable number, because it can be changed into a prime (8348748131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77303170 + ... + 77303277.

It is an arithmetic number, because the mean of its divisors is an integer number (1159548360).

Almost surely, 2^8348748138 is an apocalyptic number.

8348748138 is an abundant number, since it is smaller than the sum of its proper divisors (10204025622).

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

8348748138 is a wasteful number, since it uses less digits than its factorization.

8348748138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154606458 (or 154606452 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The square root of 8348748138 is about 91371.4842716260. The cubic root of 8348748138 is about 2028.6499746025.

The spelling of 8348748138 in words is "eight billion, three hundred forty-eight million, seven hundred forty-eight thousand, one hundred thirty-eight".