11601574231889 has 2 divisors, whose sum is σ = 11601574231890. Its totient is φ = 11601574231888.

The previous prime is 11601574231883. The next prime is 11601574231909. The reversal of 11601574231889 is 98813247510611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11196686361025 + 404887870864 = 3346145^2 + 636308^2 .

It is an emirp because it is prime and its reverse (98813247510611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11601574231889 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11601574231883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5800787115944 + 5800787115945.

It is an arithmetic number, because the mean of its divisors is an integer number (5800787115945).

It is a 1-persistent number, because it is pandigital, but 2⋅11601574231889 = 23203148463778 is not.

Almost surely, 2^{11601574231889} is an apocalyptic number.

It is an amenable number.

11601574231889 is a deficient number, since it is larger than the sum of its proper divisors (1).

11601574231889 is an equidigital number, since it uses as much as digits as its factorization.

11601574231889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 56.

The spelling of 11601574231889 in words is "eleven trillion, six hundred one billion, five hundred seventy-four million, two hundred thirty-one thousand, eight hundred eighty-nine".