18196248442937 has 2 divisors, whose sum is σ = 18196248442938. Its totient is φ = 18196248442936.

The previous prime is 18196248442849. The next prime is 18196248442993. The reversal of 18196248442937 is 73924484269181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17526648282256 + 669600160681 = 4186484^2 + 818291^2 .

It is a cyclic number.

It is not a de Polignac number, because 18196248442937 - 2¹⁶ = 18196248377401 is a prime.

It is a super-3 number, since 3×18196248442937³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (18196248492937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9098124221468 + 9098124221469.

It is an arithmetic number, because the mean of its divisors is an integer number (9098124221469).

Almost surely, 2^{18196248442937} is an apocalyptic number.

It is an amenable number.

18196248442937 is a deficient number, since it is larger than the sum of its proper divisors (1).

18196248442937 is an equidigital number, since it uses as much as digits as its factorization.

18196248442937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 167215104, while the sum is 68.

The spelling of 18196248442937 in words is "eighteen trillion, one hundred ninety-six billion, two hundred forty-eight million, four hundred forty-two thousand, nine hundred thirty-seven".