8118729126 has 12 divisors (see below), whose sum is σ = 17590579812. Its totient is φ = 2706243036.

The previous prime is 8118729121. The next prime is 8118729149. The reversal of 8118729126 is 6219278118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8118729121) 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, 225520236 + ... + 225520271.

It is an arithmetic number, because the mean of its divisors is an integer number (1465881651).

Almost surely, 2^8118729126 is an apocalyptic number.

8118729126 is an abundant number, since it is smaller than the sum of its proper divisors (9471850686).

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

8118729126 is a wasteful number, since it uses less digits than its factorization.

8118729126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451040515 (or 451040512 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The square root of 8118729126 is about 90103.9906219475. The cubic root of 8118729126 is about 2009.8455469051.

The spelling of 8118729126 in words is "eight billion, one hundred eighteen million, seven hundred twenty-nine thousand, one hundred twenty-six".