1183638538037 has 2 divisors, whose sum is σ = 1183638538038. Its totient is φ = 1183638538036.

The previous prime is 1183638537947. The next prime is 1183638538051. The reversal of 1183638538037 is 7308358363811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1182599700676 + 1038837361 = 1087474^2 + 32231^2 .

It is a cyclic number.

It is not a de Polignac number, because 1183638538037 - 2¹² = 1183638533941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1183638538057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 591819269018 + 591819269019.

It is an arithmetic number, because the mean of its divisors is an integer number (591819269019).

Almost surely, 2^{1183638538037} is an apocalyptic number.

It is an amenable number.

1183638538037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1183638538037 is an equidigital number, since it uses as much as digits as its factorization.

1183638538037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 1183638538037 in words is "one trillion, one hundred eighty-three billion, six hundred thirty-eight million, five hundred thirty-eight thousand, thirty-seven".