6226630381 has 2 divisors, whose sum is σ = 6226630382. Its totient is φ = 6226630380.

The previous prime is 6226630343. The next prime is 6226630393. The reversal of 6226630381 is 1830366226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6226630281 + 100 = 78909^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 6226630381 - 2⁷ = 6226630253 is a prime.

It is a super-2 number, since 2×6226630381² = 77541851803184410322, 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 6226630381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6226630301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3113315190 + 3113315191.

It is an arithmetic number, because the mean of its divisors is an integer number (3113315191).

Almost surely, 2^6226630381 is an apocalyptic number.

It is an amenable number.

6226630381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6226630381 is an equidigital number, since it uses as much as digits as its factorization.

6226630381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 6226630381 is about 78909.0006336413. Note that the first 3 decimals coincide. The cubic root of 6226630381 is about 1839.7170308589.

The spelling of 6226630381 in words is "six billion, two hundred twenty-six million, six hundred thirty thousand, three hundred eighty-one".