2540531440144 has 20 divisors (see below), whose sum is σ = 4922320951296. Its totient is φ = 1270255065632.

The previous prime is 2540531440127. The next prime is 2540531440177. The reversal of 2540531440144 is 4410441350452.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1518417 + ... + 2717839.

Almost surely, 2^{2540531440144} is an apocalyptic number.

It is an amenable number.

2540531440144 is a deficient number, since it is larger than the sum of its proper divisors (2381789511152).

2540531440144 is a wasteful number, since it uses less digits than its factorization.

2540531440144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331814 (or 1331808 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 2540531440144 its reverse (4410441350452), we get a palindrome (6950972790596).

The spelling of 2540531440144 in words is "two trillion, five hundred forty billion, five hundred thirty-one million, four hundred forty thousand, one hundred forty-four".