2717972886191 has 4 divisors (see below), whose sum is σ = 2720783614032. Its totient is φ = 2715162158352.

The previous prime is 2717972886179. The next prime is 2717972886197. The reversal of 2717972886191 is 1916882797172.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2717972886191 is a prime.

It is a super-2 number, since 2×2717972886191² (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 (2717972886197) 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, 1405362470 + ... + 1405364403.

It is an arithmetic number, because the mean of its divisors is an integer number (680195903508).

Almost surely, 2^{2717972886191} is an apocalyptic number.

2717972886191 is a deficient number, since it is larger than the sum of its proper divisors (2810727841).

2717972886191 is an equidigital number, since it uses as much as digits as its factorization.

2717972886191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810727840.

The product of its digits is 42674688, while the sum is 68.

The spelling of 2717972886191 in words is "two trillion, seven hundred seventeen billion, nine hundred seventy-two million, eight hundred eighty-six thousand, one hundred ninety-one".