2543341878 has 96 divisors (see below), whose sum is σ = 6924902400. Its totient is φ = 655361280.

The previous prime is 2543341873. The next prime is 2543341891. The reversal of 2543341878 is 8781433452.

2543341878 is a `hidden beast` number, since 2 + 543 + 34 + 1 + 8 + 78 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543341873) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168798 + ... + 183246.

It is an arithmetic number, because the mean of its divisors is an integer number (72134400).

Almost surely, 2^2543341878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2543341878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3462451200).

2543341878 is an abundant number, since it is smaller than the sum of its proper divisors (4381560522).

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

2543341878 is a wasteful number, since it uses less digits than its factorization.

2543341878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14602 (or 14599 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 2543341878 is about 50431.5563709866. The cubic root of 2543341878 is about 1365.0071118254.

The spelling of 2543341878 in words is "two billion, five hundred forty-three million, three hundred forty-one thousand, eight hundred seventy-eight".