2188118329 has 2 divisors, whose sum is σ = 2188118330. Its totient is φ = 2188118328.

The previous prime is 2188118281. The next prime is 2188118333. The reversal of 2188118329 is 9238118812.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1528810000 + 659308329 = 39100^2 + 25677^2 .

It is a cyclic number.

It is not a de Polignac number, because 2188118329 - 2¹⁵ = 2188085561 is a prime.

It is not a weakly prime, because it can be changed into another prime (2188118369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094059164 + 1094059165.

It is an arithmetic number, because the mean of its divisors is an integer number (1094059165).

Almost surely, 2^2188118329 is an apocalyptic number.

It is an amenable number.

2188118329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2188118329 is an equidigital number, since it uses as much as digits as its factorization.

2188118329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 43.

The square root of 2188118329 is about 46777.3270826797. The cubic root of 2188118329 is about 1298.2458251663.

The spelling of 2188118329 in words is "two billion, one hundred eighty-eight million, one hundred eighteen thousand, three hundred twenty-nine".