3381378389 has 2 divisors, whose sum is σ = 3381378390. Its totient is φ = 3381378388.

The previous prime is 3381378383. The next prime is 3381378409. The reversal of 3381378389 is 9838731833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3360520900 + 20857489 = 57970^2 + 4567^2 .

It is a cyclic number.

It is not a de Polignac number, because 3381378389 - 2²⁸ = 3112942933 is a prime.

It is a super-2 number, since 2×3381378389² = 22867439619192470642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3381378389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3381378383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1690689194 + 1690689195.

It is an arithmetic number, because the mean of its divisors is an integer number (1690689195).

Almost surely, 2^3381378389 is an apocalyptic number.

It is an amenable number.

3381378389 is a deficient number, since it is larger than the sum of its proper divisors (1).

3381378389 is an equidigital number, since it uses as much as digits as its factorization.

3381378389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 53.

The square root of 3381378389 is about 58149.6207124346. The cubic root of 3381378389 is about 1500.9443518601.

The spelling of 3381378389 in words is "three billion, three hundred eighty-one million, three hundred seventy-eight thousand, three hundred eighty-nine".