12502444042 has 32 divisors (see below), whose sum is σ = 20584088064. Its totient is φ = 5648146800.

The previous prime is 12502444037. The next prime is 12502444043. The reversal of 12502444042 is 24044420521.

It is a super-2 number, since 2×12502444042² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12502444042.

It is not an unprimeable number, because it can be changed into a prime (12502444043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3449043 + ... + 3452665.

It is an arithmetic number, because the mean of its divisors is an integer number (643252752).

Almost surely, 2^12502444042 is an apocalyptic number.

12502444042 is a deficient number, since it is larger than the sum of its proper divisors (8081644022).

12502444042 is a wasteful number, since it uses less digits than its factorization.

12502444042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4554.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 12502444042 its reverse (24044420521), we get a palindrome (36546864563).

The spelling of 12502444042 in words is "twelve billion, five hundred two million, four hundred forty-four thousand, forty-two".