6784330381 has 2 divisors, whose sum is σ = 6784330382. Its totient is φ = 6784330380.

The previous prime is 6784330351. The next prime is 6784330429. The reversal of 6784330381 is 1830334876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4531309225 + 2253021156 = 67315^2 + 47466^2 .

It is a cyclic number.

It is not a de Polignac number, because 6784330381 - 2²⁹ = 6247459469 is a prime.

It is a super-2 number, since 2×6784330381² = 92054277437119210322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6784330331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3392165190 + 3392165191.

It is an arithmetic number, because the mean of its divisors is an integer number (3392165191).

Almost surely, 2^6784330381 is an apocalyptic number.

It is an amenable number.

6784330381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6784330381 is an equidigital number, since it uses as much as digits as its factorization.

6784330381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 6784330381 is about 82367.0466934441. The cubic root of 6784330381 is about 1893.0801264870.

The spelling of 6784330381 in words is "six billion, seven hundred eighty-four million, three hundred thirty thousand, three hundred eighty-one".