2543944914 has 64 divisors (see below), whose sum is σ = 6474240000. Its totient is φ = 725331024.

The previous prime is 2543944913. The next prime is 2543944927. The reversal of 2543944914 is 4194493452.

2543944914 is a `hidden beast` number, since 2 + 543 + 94 + 4 + 9 + 14 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2543944914.

It is not an unprimeable number, because it can be changed into a prime (2543944913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181879 + ... + 195365.

It is an arithmetic number, because the mean of its divisors is an integer number (101160000).

Almost surely, 2^2543944914 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2543944914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3237120000).

2543944914 is an abundant number, since it is smaller than the sum of its proper divisors (3930295086).

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

2543944914 is a wasteful number, since it uses less digits than its factorization.

2543944914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14004 (or 13998 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 2543944914 is about 50437.5347732222. The cubic root of 2543944914 is about 1365.1149860869.

The spelling of 2543944914 in words is "two billion, five hundred forty-three million, nine hundred forty-four thousand, nine hundred fourteen".