12560291142 has 96 divisors (see below), whose sum is σ = 30359298816. Its totient is φ = 3391657920.

The previous prime is 12560291137. The next prime is 12560291167. The reversal of 12560291142 is 24119206521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1731948 + ... + 1739184.

It is an arithmetic number, because the mean of its divisors is an integer number (316242696).

Almost surely, 2^12560291142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12560291142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15179649408).

12560291142 is an abundant number, since it is smaller than the sum of its proper divisors (17799007674).

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

12560291142 is a wasteful number, since it uses less digits than its factorization.

12560291142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7354 (or 7323 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

Adding to 12560291142 its reverse (24119206521), we get a palindrome (36679497663).

The spelling of 12560291142 in words is "twelve billion, five hundred sixty million, two hundred ninety-one thousand, one hundred forty-two".