8867657138 has 6 divisors (see below), whose sum is σ = 13301685471. Its totient is φ = 4433761982.

The previous prime is 8867657131. The next prime is 8867657159. The reversal of 8867657138 is 8317567688.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4433828569 + 4433828569 = 66587^2 + 66587^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=66587.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8867657131) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 99881 + ... + 166467.

Almost surely, 2^8867657138 is an apocalyptic number.

8867657138 is a deficient number, since it is larger than the sum of its proper divisors (4434028333).

8867657138 is an frugal number, since it uses more digits than its factorization.

8867657138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133176 (or 66589 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 59.

The square root of 8867657138 is about 94168.2384777373. The cubic root of 8867657138 is about 2069.8377227373.

The spelling of 8867657138 in words is "eight billion, eight hundred sixty-seven million, six hundred fifty-seven thousand, one hundred thirty-eight".