2543470872 has 128 divisors (see below), whose sum is σ = 6914419200. Its totient is φ = 776936448.

The previous prime is 2543470849. The next prime is 2543470883. The reversal of 2543470872 is 2780743452.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3930853 + ... + 3931499.

It is an arithmetic number, because the mean of its divisors is an integer number (54018900).

Almost surely, 2^2543470872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2543470872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3457209600).

2543470872 is an abundant number, since it is smaller than the sum of its proper divisors (4370948328).

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

2543470872 is a wasteful number, since it uses less digits than its factorization.

2543470872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 42.

The square root of 2543470872 is about 50432.8352564081. The cubic root of 2543470872 is about 1365.0301883863.

The spelling of 2543470872 in words is "two billion, five hundred forty-three million, four hundred seventy thousand, eight hundred seventy-two".