2543171442 has 64 divisors (see below), whose sum is σ = 5949292800. Its totient is φ = 724453632.

The previous prime is 2543171429. The next prime is 2543171447. The reversal of 2543171442 is 2441713452.

It is not an unprimeable number, because it can be changed into a prime (2543171447) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 765978 + ... + 769290.

It is an arithmetic number, because the mean of its divisors is an integer number (92957700).

Almost surely, 2^2543171442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2543171442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2974646400).

2543171442 is an abundant number, since it is smaller than the sum of its proper divisors (3406121358).

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

2543171442 is a wasteful number, since it uses less digits than its factorization.

2543171442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712 (or 3698 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 2543171442 is about 50429.8665673428. The cubic root of 2543171442 is about 1364.9766202439.

Adding to 2543171442 its reverse (2441713452), we get a palindrome (4984884894).

The spelling of 2543171442 in words is "two billion, five hundred forty-three million, one hundred seventy-one thousand, four hundred forty-two".