11571361937 has 2 divisors, whose sum is σ = 11571361938. Its totient is φ = 11571361936.

The previous prime is 11571361897. The next prime is 11571361943. The reversal of 11571361937 is 73916317511.

It is a happy number.

11571361937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11191735681 + 379626256 = 105791^2 + 19484^2 .

It is a cyclic number.

It is not a de Polignac number, because 11571361937 - 2⁶ = 11571361873 is a prime.

It is not a weakly prime, because it can be changed into another prime (11571361237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5785680968 + 5785680969.

It is an arithmetic number, because the mean of its divisors is an integer number (5785680969).

Almost surely, 2^11571361937 is an apocalyptic number.

It is an amenable number.

11571361937 is a deficient number, since it is larger than the sum of its proper divisors (1).

11571361937 is an equidigital number, since it uses as much as digits as its factorization.

11571361937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119070, while the sum is 44.

The spelling of 11571361937 in words is "eleven billion, five hundred seventy-one million, three hundred sixty-one thousand, nine hundred thirty-seven".