6391790113 has 2 divisors, whose sum is σ = 6391790114. Its totient is φ = 6391790112.

The previous prime is 6391790107. The next prime is 6391790131. The reversal of 6391790113 is 3110971936.

Together with next prime (6391790131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6386087569 + 5702544 = 79913^2 + 2388^2 .

It is a cyclic number.

It is not a de Polignac number, because 6391790113 - 2⁵ = 6391790081 is a prime.

It is not a weakly prime, because it can be changed into another prime (6391790213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3195895056 + 3195895057.

It is an arithmetic number, because the mean of its divisors is an integer number (3195895057).

Almost surely, 2^6391790113 is an apocalyptic number.

It is an amenable number.

6391790113 is a deficient number, since it is larger than the sum of its proper divisors (1).

6391790113 is an equidigital number, since it uses as much as digits as its factorization.

6391790113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 6391790113 is about 79948.6717400608. The cubic root of 6391790113 is about 1855.8412995722.

The spelling of 6391790113 in words is "six billion, three hundred ninety-one million, seven hundred ninety thousand, one hundred thirteen".