2018388797 has 2 divisors, whose sum is σ = 2018388798. Its totient is φ = 2018388796.

The previous prime is 2018388793. The next prime is 2018388811. The reversal of 2018388797 is 7978838102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1384658521 + 633730276 = 37211^2 + 25174^2 .

It is a cyclic number.

It is not a de Polignac number, because 2018388797 - 2² = 2018388793 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2018388793) 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, 1009194398 + 1009194399.

It is an arithmetic number, because the mean of its divisors is an integer number (1009194399).

Almost surely, 2^2018388797 is an apocalyptic number.

It is an amenable number.

2018388797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018388797 is an equidigital number, since it uses as much as digits as its factorization.

2018388797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The square root of 2018388797 is about 44926.4821347054. The cubic root of 2018388797 is about 1263.7706809475.

The spelling of 2018388797 in words is "two billion, eighteen million, three hundred eighty-eight thousand, seven hundred ninety-seven".