18829690177 has 2 divisors, whose sum is σ = 18829690178. Its totient is φ = 18829690176.

The previous prime is 18829690157. The next prime is 18829690199. The reversal of 18829690177 is 77109692881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18791200561 + 38489616 = 137081^2 + 6204^2 .

It is a cyclic number.

It is not a de Polignac number, because 18829690177 - 2⁷ = 18829690049 is a prime.

It is not a weakly prime, because it can be changed into another prime (18829690157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9414845088 + 9414845089.

It is an arithmetic number, because the mean of its divisors is an integer number (9414845089).

Almost surely, 2^18829690177 is an apocalyptic number.

It is an amenable number.

18829690177 is a deficient number, since it is larger than the sum of its proper divisors (1).

18829690177 is an equidigital number, since it uses as much as digits as its factorization.

18829690177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 58.

The spelling of 18829690177 in words is "eighteen billion, eight hundred twenty-nine million, six hundred ninety thousand, one hundred seventy-seven".