18049558915627 has 4 divisors (see below), whose sum is σ = 18999535700680. Its totient is φ = 17099582130576.

The previous prime is 18049558915579. The next prime is 18049558915657. The reversal of 18049558915627 is 72651985594081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18049558915627 - 2¹¹ = 18049558913579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18049558915657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474988392498 + ... + 474988392535.

It is an arithmetic number, because the mean of its divisors is an integer number (4749883925170).

Almost surely, 2^{18049558915627} is an apocalyptic number.

18049558915627 is a deficient number, since it is larger than the sum of its proper divisors (949976785053).

18049558915627 is an equidigital number, since it uses as much as digits as its factorization.

18049558915627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949976785052.

The product of its (nonzero) digits is 217728000, while the sum is 70.

The spelling of 18049558915627 in words is "eighteen trillion, forty-nine billion, five hundred fifty-eight million, nine hundred fifteen thousand, six hundred twenty-seven".