18000390627061 has 2 divisors, whose sum is σ = 18000390627062. Its totient is φ = 18000390627060.

The previous prime is 18000390627029. The next prime is 18000390627071. The reversal of 18000390627061 is 16072609300081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12210202376100 + 5790188250961 = 3494310^2 + 2406281^2 .

It is a cyclic number.

It is not a de Polignac number, because 18000390627061 - 2⁵ = 18000390627029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18000390626999 and 18000390627017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18000390627071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9000195313530 + 9000195313531.

It is an arithmetic number, because the mean of its divisors is an integer number (9000195313531).

Almost surely, 2^{18000390627061} is an apocalyptic number.

It is an amenable number.

18000390627061 is a deficient number, since it is larger than the sum of its proper divisors (1).

18000390627061 is an equidigital number, since it uses as much as digits as its factorization.

18000390627061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 18000390627061 in words is "eighteen trillion, three hundred ninety million, six hundred twenty-seven thousand, sixty-one".