12047284323742 has 4 divisors (see below), whose sum is σ = 18070926485616. Its totient is φ = 6023642161870.

The previous prime is 12047284323661. The next prime is 12047284323751. The reversal of 12047284323742 is 24732348274021.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3011821080934 + ... + 3011821080937.

It is an arithmetic number, because the mean of its divisors is an integer number (4517731621404).

Almost surely, 2^{12047284323742} is an apocalyptic number.

12047284323742 is a deficient number, since it is larger than the sum of its proper divisors (6023642161874).

12047284323742 is an equidigital number, since it uses as much as digits as its factorization.

12047284323742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6023642161873.

The product of its (nonzero) digits is 3612672, while the sum is 49.

The spelling of 12047284323742 in words is "twelve trillion, forty-seven billion, two hundred eighty-four million, three hundred twenty-three thousand, seven hundred forty-two".