3815068321 has 2 divisors, whose sum is σ = 3815068322. Its totient is φ = 3815068320.

The previous prime is 3815068247. The next prime is 3815068333. The reversal of 3815068321 is 1238605183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3194510400 + 620557921 = 56520^2 + 24911^2 .

It is a cyclic number.

It is not a de Polignac number, because 3815068321 - 2¹⁹ = 3814544033 is a prime.

It is not a weakly prime, because it can be changed into another prime (3815068391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1907534160 + 1907534161.

It is an arithmetic number, because the mean of its divisors is an integer number (1907534161).

Almost surely, 2^3815068321 is an apocalyptic number.

It is an amenable number.

3815068321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3815068321 is an equidigital number, since it uses as much as digits as its factorization.

3815068321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 3815068321 is about 61766.2393302361. The cubic root of 3815068321 is about 1562.5506597847.

The spelling of 3815068321 in words is "three billion, eight hundred fifteen million, sixty-eight thousand, three hundred twenty-one".