2540715957159 has 4 divisors (see below), whose sum is σ = 3387621276216. Its totient is φ = 1693810638104.

The previous prime is 2540715957151. The next prime is 2540715957173. The reversal of 2540715957159 is 9517595170452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2540715957159 - 2³ = 2540715957151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540715957151) 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, 423452659524 + ... + 423452659529.

It is an arithmetic number, because the mean of its divisors is an integer number (846905319054).

Almost surely, 2^{2540715957159} is an apocalyptic number.

2540715957159 is a deficient number, since it is larger than the sum of its proper divisors (846905319057).

2540715957159 is an equidigital number, since it uses as much as digits as its factorization.

2540715957159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846905319056.

The product of its (nonzero) digits is 19845000, while the sum is 60.

The spelling of 2540715957159 in words is "two trillion, five hundred forty billion, seven hundred fifteen million, nine hundred fifty-seven thousand, one hundred fifty-nine".