2541513345540 has 96 divisors (see below), whose sum is σ = 7682378712960. Its totient is φ = 624073614336.

The previous prime is 2541513345517. The next prime is 2541513345541. The reversal of 2541513345540 is 455433151452.

It is a junction number, because it is equal to n+sod(n) for n = 2541513345492 and 2541513345501.

It is not an unprimeable number, because it can be changed into a prime (2541513345541) 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, 3664294 + ... + 4302333.

It is an arithmetic number, because the mean of its divisors is an integer number (80024778260).

Almost surely, 2^{2541513345540} is an apocalyptic number.

2541513345540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2541513345540 is an abundant number, since it is smaller than the sum of its proper divisors (5140865367420).

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

2541513345540 is a wasteful number, since it uses less digits than its factorization.

2541513345540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7967061 (or 7967059 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

Adding to 2541513345540 its reverse (455433151452), we get a palindrome (2996946496992).

The spelling of 2541513345540 in words is "two trillion, five hundred forty-one billion, five hundred thirteen million, three hundred forty-five thousand, five hundred forty".