18950164063 has 2 divisors, whose sum is σ = 18950164064. Its totient is φ = 18950164062.

The previous prime is 18950164033. The next prime is 18950164091. The reversal of 18950164063 is 36046105981.

It is a strong prime.

It is an emirp because it is prime and its reverse (36046105981) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18950164063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18950164033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9475082031 + 9475082032.

It is an arithmetic number, because the mean of its divisors is an integer number (9475082032).

Almost surely, 2^18950164063 is an apocalyptic number.

18950164063 is a deficient number, since it is larger than the sum of its proper divisors (1).

18950164063 is an equidigital number, since it uses as much as digits as its factorization.

18950164063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 18950164063 in words is "eighteen billion, nine hundred fifty million, one hundred sixty-four thousand, sixty-three".