8126727071218 has 12 divisors (see below), whose sum is σ = 14180309481582. Its totient is φ = 3482883030480.

The previous prime is 8126727071209. The next prime is 8126727071219. The reversal of 8126727071218 is 8121707276218.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5256166072689 + 2870560998529 = 2292633^2 + 1694273^2 .

It is not an unprimeable number, because it can be changed into a prime (8126727071219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41462893123 + ... + 41462893318.

Almost surely, 2^{8126727071218} is an apocalyptic number.

8126727071218 is a deficient number, since it is larger than the sum of its proper divisors (6053582410364).

8126727071218 is a wasteful number, since it uses less digits than its factorization.

8126727071218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82925786457 (or 82925786450 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 52.

The spelling of 8126727071218 in words is "eight trillion, one hundred twenty-six billion, seven hundred twenty-seven million, seventy-one thousand, two hundred eighteen".