18500003667037 has 2 divisors, whose sum is σ = 18500003667038. Its totient is φ = 18500003667036.

The previous prime is 18500003666951. The next prime is 18500003667083. The reversal of 18500003667037 is 73076630000581.

It is an a-pointer prime, because the next prime (18500003667083) can be obtained adding 18500003667037 to its sum of digits (46).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18075923993241 + 424079673796 = 4251579^2 + 651214^2 .

It is a cyclic number.

It is not a de Polignac number, because 18500003667037 - 2¹⁹ = 18500003142749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18500003667097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9250001833518 + 9250001833519.

It is an arithmetic number, because the mean of its divisors is an integer number (9250001833519).

Almost surely, 2^{18500003667037} is an apocalyptic number.

It is an amenable number.

18500003667037 is a deficient number, since it is larger than the sum of its proper divisors (1).

18500003667037 is an equidigital number, since it uses as much as digits as its factorization.

18500003667037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 18500003667037 in words is "eighteen trillion, five hundred billion, three million, six hundred sixty-seven thousand, thirty-seven".