12237989942 has 4 divisors (see below), whose sum is σ = 18356984916. Its totient is φ = 6118994970.

The previous prime is 12237989921. The next prime is 12237989947. The reversal of 12237989942 is 24998973221.

12237989942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12237989947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3059497484 + ... + 3059497487.

It is an arithmetic number, because the mean of its divisors is an integer number (4589246229).

Almost surely, 2^12237989942 is an apocalyptic number.

12237989942 is a deficient number, since it is larger than the sum of its proper divisors (6118994974).

12237989942 is an equidigital number, since it uses as much as digits as its factorization.

12237989942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6118994973.

The product of its digits is 3919104, while the sum is 56.

The spelling of 12237989942 in words is "twelve billion, two hundred thirty-seven million, nine hundred eighty-nine thousand, nine hundred forty-two".