12542000000 has 112 divisors (see below), whose sum is σ = 31237100160. Its totient is φ = 5016000000.

The previous prime is 12541999991. The next prime is 12542000021. The reversal of 12542000000 is 24521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1996865 + ... + 2003135.

It is an arithmetic number, because the mean of its divisors is an integer number (278902680).

Almost surely, 2^12542000000 is an apocalyptic number.

12542000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12542000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15618550080).

12542000000 is an abundant number, since it is smaller than the sum of its proper divisors (18695100160).

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

12542000000 is an frugal number, since it uses more digits than its factorization.

12542000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6315 (or 6278 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

Adding to 12542000000 its reverse (24521), we get a palindrome (12542024521).

The spelling of 12542000000 in words is "twelve billion, five hundred forty-two million", and thus it is an aban number.