12462121542 has 32 divisors (see below), whose sum is σ = 27107267040. Its totient is φ = 3796531200.

The previous prime is 12462121531. The next prime is 12462121549. The reversal of 12462121542 is 24512126421.

12462121542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12462121549) 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 in 15 ways as a sum of consecutive naturals, for example, 783067 + ... + 798822.

It is an arithmetic number, because the mean of its divisors is an integer number (847102095).

Almost surely, 2^12462121542 is an apocalyptic number.

12462121542 is an abundant number, since it is smaller than the sum of its proper divisors (14645145498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12462121542 is a wasteful number, since it uses less digits than its factorization.

12462121542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582008.

The product of its digits is 7680, while the sum is 30.

Adding to 12462121542 its reverse (24512126421), we get a palindrome (36974247963).

The spelling of 12462121542 in words is "twelve billion, four hundred sixty-two million, one hundred twenty-one thousand, five hundred forty-two".