18040449751627 has 2 divisors, whose sum is σ = 18040449751628. Its totient is φ = 18040449751626.

The previous prime is 18040449751619. The next prime is 18040449751633. The reversal of 18040449751627 is 72615794404081.

It is a strong prime.

It is an emirp because it is prime and its reverse (72615794404081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18040449751627 - 2³ = 18040449751619 is a prime.

It is not a weakly prime, because it can be changed into another prime (18040449751657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9020224875813 + 9020224875814.

It is an arithmetic number, because the mean of its divisors is an integer number (9020224875814).

Almost surely, 2^{18040449751627} is an apocalyptic number.

18040449751627 is a deficient number, since it is larger than the sum of its proper divisors (1).

18040449751627 is an equidigital number, since it uses as much as digits as its factorization.

18040449751627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 18040449751627 in words is "eighteen trillion, forty billion, four hundred forty-nine million, seven hundred fifty-one thousand, six hundred twenty-seven".