2540043323144 has 16 divisors (see below), whose sum is σ = 4762598856000. Its totient is φ = 1270016961552.

The previous prime is 2540043323141. The next prime is 2540043323173. The reversal of 2540043323144 is 4413233400452.

It is not an unprimeable number, because it can be changed into a prime (2540043323141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2992757 + ... + 3746555.

It is an arithmetic number, because the mean of its divisors is an integer number (297662428500).

Almost surely, 2^{2540043323144} is an apocalyptic number.

It is an amenable number.

2540043323144 is a deficient number, since it is larger than the sum of its proper divisors (2222555532856).

2540043323144 is a wasteful number, since it uses less digits than its factorization.

2540043323144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175012 (or 1175008 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 2540043323144 its reverse (4413233400452), we get a palindrome (6953276723596).

The spelling of 2540043323144 in words is "two trillion, five hundred forty billion, forty-three million, three hundred twenty-three thousand, one hundred forty-four".