11719815297571 has 2 divisors, whose sum is σ = 11719815297572. Its totient is φ = 11719815297570.

The previous prime is 11719815297521. The next prime is 11719815297607. The reversal of 11719815297571 is 17579251891711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11719815297571 - 2¹¹ = 11719815295523 is a prime.

It is not a weakly prime, because it can be changed into another prime (11719815297521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5859907648785 + 5859907648786.

It is an arithmetic number, because the mean of its divisors is an integer number (5859907648786).

Almost surely, 2^{11719815297571} is an apocalyptic number.

11719815297571 is a deficient number, since it is larger than the sum of its proper divisors (1).

11719815297571 is an equidigital number, since it uses as much as digits as its factorization.

11719815297571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11113200, while the sum is 64.

The spelling of 11719815297571 in words is "eleven trillion, seven hundred nineteen billion, eight hundred fifteen million, two hundred ninety-seven thousand, five hundred seventy-one".