2543312881517 has 8 divisors (see below), whose sum is σ = 2562690650016. Its totient is φ = 2523988866672.

The previous prime is 2543312881511. The next prime is 2543312881567. The reversal of 2543312881517 is 7151882133452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2543312881517 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 (2543312881511) 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, 13343423 + ... + 13532684.

It is an arithmetic number, because the mean of its divisors is an integer number (320336331252).

Almost surely, 2^{2543312881517} is an apocalyptic number.

It is an amenable number.

2543312881517 is a deficient number, since it is larger than the sum of its proper divisors (19377768499).

2543312881517 is a wasteful number, since it uses less digits than its factorization.

2543312881517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26876827.

The product of its digits is 1612800, while the sum is 50.

The spelling of 2543312881517 in words is "two trillion, five hundred forty-three billion, three hundred twelve million, eight hundred eighty-one thousand, five hundred seventeen".