2118534659 has 2 divisors, whose sum is σ = 2118534660. Its totient is φ = 2118534658.

The previous prime is 2118534629. The next prime is 2118534667. The reversal of 2118534659 is 9564358112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2118534659 - 2⁸ = 2118534403 is a prime.

It is not a weakly prime, because it can be changed into another prime (2118534629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059267329 + 1059267330.

It is an arithmetic number, because the mean of its divisors is an integer number (1059267330).

Almost surely, 2^2118534659 is an apocalyptic number.

2118534659 is a deficient number, since it is larger than the sum of its proper divisors (1).

2118534659 is an equidigital number, since it uses as much as digits as its factorization.

2118534659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 44.

The square root of 2118534659 is about 46027.5423958308. The cubic root of 2118534659 is about 1284.3356109650.

The spelling of 2118534659 in words is "two billion, one hundred eighteen million, five hundred thirty-four thousand, six hundred fifty-nine".