18162420037 has 2 divisors, whose sum is σ = 18162420038. Its totient is φ = 18162420036.

The previous prime is 18162419969. The next prime is 18162420049. The reversal of 18162420037 is 73002426181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17194027876 + 968392161 = 131126^2 + 31119^2 .

It is a cyclic number.

It is not a de Polignac number, because 18162420037 - 2¹¹ = 18162417989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18162419984 and 18162420011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18162420637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9081210018 + 9081210019.

It is an arithmetic number, because the mean of its divisors is an integer number (9081210019).

Almost surely, 2^18162420037 is an apocalyptic number.

It is an amenable number.

18162420037 is a deficient number, since it is larger than the sum of its proper divisors (1).

18162420037 is an equidigital number, since it uses as much as digits as its factorization.

18162420037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 18162420037 in words is "eighteen billion, one hundred sixty-two million, four hundred twenty thousand, thirty-seven".