12421742162 has 4 divisors (see below), whose sum is σ = 18632613246. Its totient is φ = 6210871080.

The previous prime is 12421742149. The next prime is 12421742167. The reversal of 12421742162 is 26124712421.

12421742162 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, and also an emirpimes, since its reverse is a distinct semiprime: 26124712421 = 109903 ⋅237707.

It can be written as a sum of positive squares in only one way, i.e., 7375202641 + 5046539521 = 85879^2 + 71039^2 .

It is not an unprimeable number, because it can be changed into a prime (12421742167) 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, 3105435539 + ... + 3105435542.

Almost surely, 2^12421742162 is an apocalyptic number.

12421742162 is a deficient number, since it is larger than the sum of its proper divisors (6210871084).

12421742162 is an equidigital number, since it uses as much as digits as its factorization.

12421742162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6210871083.

The product of its digits is 10752, while the sum is 32.

The spelling of 12421742162 in words is "twelve billion, four hundred twenty-one million, seven hundred forty-two thousand, one hundred sixty-two".