12118279506 has 16 divisors (see below), whose sum is σ = 24246272064. Its totient is φ = 4037807664.

The previous prime is 12118279493. The next prime is 12118279529. The reversal of 12118279506 is 60597281121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388441 + ... + 418476.

It is an arithmetic number, because the mean of its divisors is an integer number (1515392004).

Almost surely, 2^12118279506 is an apocalyptic number.

12118279506 is an abundant number, since it is smaller than the sum of its proper divisors (12127992558).

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

12118279506 is a wasteful number, since it uses less digits than its factorization.

12118279506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809425.

The product of its (nonzero) digits is 60480, while the sum is 42.

The spelling of 12118279506 in words is "twelve billion, one hundred eighteen million, two hundred seventy-nine thousand, five hundred six".