2742247563517 has 16 divisors (see below), whose sum is σ = 3476853619200. Its totient is φ = 2100599054640.

The previous prime is 2742247563499. The next prime is 2742247563529. The reversal of 2742247563517 is 7153657422472.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2742247563517 is a prime.

It is a super-2 number, since 2×2742247563517² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2742247563547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301805667 + ... + 301814752.

It is an arithmetic number, because the mean of its divisors is an integer number (217303351200).

Almost surely, 2^{2742247563517} is an apocalyptic number.

It is an amenable number.

2742247563517 is a deficient number, since it is larger than the sum of its proper divisors (734606055683).

2742247563517 is a wasteful number, since it uses less digits than its factorization.

2742247563517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603620496.

The product of its digits is 19756800, while the sum is 55.

The spelling of 2742247563517 in words is "two trillion, seven hundred forty-two billion, two hundred forty-seven million, five hundred sixty-three thousand, five hundred seventeen".