18362669189 has 2 divisors, whose sum is σ = 18362669190. Its totient is φ = 18362669188.

The previous prime is 18362669159. The next prime is 18362669233. The reversal of 18362669189 is 98196626381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18283637089 + 79032100 = 135217^2 + 8890^2 .

It is a cyclic number.

It is not a de Polignac number, because 18362669189 - 2²⁴ = 18345891973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18362669159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9181334594 + 9181334595.

It is an arithmetic number, because the mean of its divisors is an integer number (9181334595).

Almost surely, 2^18362669189 is an apocalyptic number.

It is an amenable number.

18362669189 is a deficient number, since it is larger than the sum of its proper divisors (1).

18362669189 is an equidigital number, since it uses as much as digits as its factorization.

18362669189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6718464, while the sum is 59.

The spelling of 18362669189 in words is "eighteen billion, three hundred sixty-two million, six hundred sixty-nine thousand, one hundred eighty-nine".