12018547308 has 12 divisors (see below), whose sum is σ = 28043277080. Its totient is φ = 4006182432.

The previous prime is 12018547243. The next prime is 12018547393. The reversal of 12018547308 is 80374581021.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500772793 + ... + 500772816.

Almost surely, 2^12018547308 is an apocalyptic number.

It is an amenable number.

12018547308 is an abundant number, since it is smaller than the sum of its proper divisors (16024729772).

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

12018547308 is a wasteful number, since it uses less digits than its factorization.

12018547308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001545616 (or 1001545614 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 12018547308 in words is "twelve billion, eighteen million, five hundred forty-seven thousand, three hundred eight".