12047728199 has 4 divisors (see below), whose sum is σ = 12974476536. Its totient is φ = 11120979864.

The previous prime is 12047728193. The next prime is 12047728247. The reversal of 12047728199 is 99182774021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99182774021 = 2017 ⋅49173413.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12047728199 is a prime.

It is a Duffinian number.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463374149 + ... + 463374174.

It is an arithmetic number, because the mean of its divisors is an integer number (3243619134).

Almost surely, 2^12047728199 is an apocalyptic number.

12047728199 is a deficient number, since it is larger than the sum of its proper divisors (926748337).

12047728199 is an equidigital number, since it uses as much as digits as its factorization.

12047728199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926748336.

The product of its (nonzero) digits is 508032, while the sum is 50.

The spelling of 12047728199 in words is "twelve billion, forty-seven million, seven hundred twenty-eight thousand, one hundred ninety-nine".