3218845117 has 2 divisors, whose sum is σ = 3218845118. Its totient is φ = 3218845116.

The previous prime is 3218845087. The next prime is 3218845121. The reversal of 3218845117 is 7115488123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3017744356 + 201100761 = 54934^2 + 14181^2 .

It is a cyclic number.

It is not a de Polignac number, because 3218845117 - 2⁷ = 3218844989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3218845117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3218845177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1609422558 + 1609422559.

It is an arithmetic number, because the mean of its divisors is an integer number (1609422559).

Almost surely, 2^3218845117 is an apocalyptic number.

It is an amenable number.

3218845117 is a deficient number, since it is larger than the sum of its proper divisors (1).

3218845117 is an equidigital number, since it uses as much as digits as its factorization.

3218845117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 40.

The square root of 3218845117 is about 56734.8668545190. The cubic root of 3218845117 is about 1476.4996895907.

The spelling of 3218845117 in words is "three billion, two hundred eighteen million, eight hundred forty-five thousand, one hundred seventeen".