11597191871 has 2 divisors, whose sum is σ = 11597191872. Its totient is φ = 11597191870.

The previous prime is 11597191867. The next prime is 11597191889. The reversal of 11597191871 is 17819179511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11597191871 - 2² = 11597191867 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11597191841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5798595935 + 5798595936.

It is an arithmetic number, because the mean of its divisors is an integer number (5798595936).

Almost surely, 2^11597191871 is an apocalyptic number.

11597191871 is a deficient number, since it is larger than the sum of its proper divisors (1).

11597191871 is an equidigital number, since it uses as much as digits as its factorization.

11597191871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 50.

The spelling of 11597191871 in words is "eleven billion, five hundred ninety-seven million, one hundred ninety-one thousand, eight hundred seventy-one".