3345778889 has 2 divisors, whose sum is σ = 3345778890. Its totient is φ = 3345778888.

The previous prime is 3345778879. The next prime is 3345778901. The reversal of 3345778889 is 9888775433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2734453264 + 611325625 = 52292^2 + 24725^2 .

It is an emirp because it is prime and its reverse (9888775433) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3345778889 - 2¹² = 3345774793 is a prime.

It is a super-2 number, since 2×3345778889² = 22388472748156148642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (3345778829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1672889444 + 1672889445.

It is an arithmetic number, because the mean of its divisors is an integer number (1672889445).

Almost surely, 2^3345778889 is an apocalyptic number.

It is an amenable number.

3345778889 is a deficient number, since it is larger than the sum of its proper divisors (1).

3345778889 is an equidigital number, since it uses as much as digits as its factorization.

3345778889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40642560, while the sum is 62.

The square root of 3345778889 is about 57842.7081748426. The cubic root of 3345778889 is about 1495.6583922708.

The spelling of 3345778889 in words is "three billion, three hundred forty-five million, seven hundred seventy-eight thousand, eight hundred eighty-nine".