2068550381 has 2 divisors, whose sum is σ = 2068550382. Its totient is φ = 2068550380.

The previous prime is 2068550377. The next prime is 2068550401. The reversal of 2068550381 is 1830558602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1986484900 + 82065481 = 44570^2 + 9059^2 .

It is a cyclic number.

It is not a de Polignac number, because 2068550381 - 2² = 2068550377 is a prime.

It is a super-2 number, since 2×2068550381² = 8557801357470490322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2068550581) 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, 1034275190 + 1034275191.

It is an arithmetic number, because the mean of its divisors is an integer number (1034275191).

Almost surely, 2^2068550381 is an apocalyptic number.

It is an amenable number.

2068550381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2068550381 is an equidigital number, since it uses as much as digits as its factorization.

2068550381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 2068550381 is about 45481.3190332031. The cubic root of 2068550381 is about 1274.1543295909.

The spelling of 2068550381 in words is "two billion, sixty-eight million, five hundred fifty thousand, three hundred eighty-one".