2540460237517 has 6 divisors (see below), whose sum is σ = 2698689595178. Its totient is φ = 2391021399744.

The previous prime is 2540460237503. The next prime is 2540460237541. The reversal of 2540460237517 is 7157320640452.

It can be written as a sum of positive squares in 3 ways, for example, as 1501815936196 + 1038644301321 = 1225486^2 + 1019139^2 .

It is not a de Polignac number, because 2540460237517 - 2³⁹ = 1990704423629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540460237547) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4395259638 + ... + 4395260215.

Almost surely, 2^{2540460237517} is an apocalyptic number.

It is an amenable number.

2540460237517 is a deficient number, since it is larger than the sum of its proper divisors (158229357661).

2540460237517 is an equidigital number, since it uses as much as digits as its factorization.

2540460237517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8790519887 (or 8790519870 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 46.

Adding to 2540460237517 its reverse (7157320640452), we get a palindrome (9697780877969).

The spelling of 2540460237517 in words is "two trillion, five hundred forty billion, four hundred sixty million, two hundred thirty-seven thousand, five hundred seventeen".