2540242454511 has 8 divisors (see below), whose sum is σ = 3387679914160. Its totient is φ = 1693149982272.

The previous prime is 2540242454489. The next prime is 2540242454537. The reversal of 2540242454511 is 1154542420452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2540242454511 - 2⁵ = 2540242454479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2540242454511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540242454551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86229670 + ... + 86259123.

It is an arithmetic number, because the mean of its divisors is an integer number (423459989270).

Almost surely, 2^{2540242454511} is an apocalyptic number.

2540242454511 is a deficient number, since it is larger than the sum of its proper divisors (847437459649).

2540242454511 is a wasteful number, since it uses less digits than its factorization.

2540242454511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172493705.

The product of its (nonzero) digits is 256000, while the sum is 39.

Adding to 2540242454511 its reverse (1154542420452), we get a palindrome (3694784874963).

The spelling of 2540242454511 in words is "two trillion, five hundred forty billion, two hundred forty-two million, four hundred fifty-four thousand, five hundred eleven".