18948089627 has 2 divisors, whose sum is σ = 18948089628. Its totient is φ = 18948089626.

The previous prime is 18948089597. The next prime is 18948089639. The reversal of 18948089627 is 72698084981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18948089627 - 2¹⁰ = 18948088603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18948089627.

It is not a weakly prime, because it can be changed into another prime (18948089227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9474044813 + 9474044814.

It is an arithmetic number, because the mean of its divisors is an integer number (9474044814).

Almost surely, 2^18948089627 is an apocalyptic number.

18948089627 is a deficient number, since it is larger than the sum of its proper divisors (1).

18948089627 is an equidigital number, since it uses as much as digits as its factorization.

18948089627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13934592, while the sum is 62.

The spelling of 18948089627 in words is "eighteen billion, nine hundred forty-eight million, eighty-nine thousand, six hundred twenty-seven".