12047728198 has 16 divisors (see below), whose sum is σ = 20874139344. Its totient is φ = 5154108160.

The previous prime is 12047728193. The next prime is 12047728247. The reversal of 12047728198 is 89182774021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12047728193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16106215 + ... + 16106962.

It is an arithmetic number, because the mean of its divisors is an integer number (1304633709).

Almost surely, 2^12047728198 is an apocalyptic number.

12047728198 is a deficient number, since it is larger than the sum of its proper divisors (8826411146).

12047728198 is a wasteful number, since it uses less digits than its factorization.

12047728198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32213207.

The product of its (nonzero) digits is 451584, while the sum is 49.

The spelling of 12047728198 in words is "twelve billion, forty-seven million, seven hundred twenty-eight thousand, one hundred ninety-eight".