2918816213 has 2 divisors, whose sum is σ = 2918816214. Its totient is φ = 2918816212.

The previous prime is 2918816183. The next prime is 2918816237. The reversal of 2918816213 is 3126188192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2712118084 + 206698129 = 52078^2 + 14377^2 .

It is a cyclic number.

It is not a de Polignac number, because 2918816213 - 2⁶ = 2918816149 is a prime.

It is a super-2 number, since 2×2918816213² = 17038976170543322738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2918813213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1459408106 + 1459408107.

It is an arithmetic number, because the mean of its divisors is an integer number (1459408107).

Almost surely, 2^2918816213 is an apocalyptic number.

It is an amenable number.

2918816213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2918816213 is an equidigital number, since it uses as much as digits as its factorization.

2918816213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 41.

The square root of 2918816213 is about 54026.0697534070. The cubic root of 2918816213 is about 1429.1207226038.

The spelling of 2918816213 in words is "two billion, nine hundred eighteen million, eight hundred sixteen thousand, two hundred thirteen".