3342578821 has 2 divisors, whose sum is σ = 3342578822. Its totient is φ = 3342578820.

The previous prime is 3342578809. The next prime is 3342578843. The reversal of 3342578821 is 1288752433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3164062500 + 178516321 = 56250^2 + 13361^2 .

It is an emirp because it is prime and its reverse (1288752433) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3342578821 - 2¹¹ = 3342576773 is a prime.

It is a super-2 number, since 2×3342578821² = 22345666349195500082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3342578801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1671289410 + 1671289411.

It is an arithmetic number, because the mean of its divisors is an integer number (1671289411).

Almost surely, 2^3342578821 is an apocalyptic number.

It is an amenable number.

3342578821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3342578821 is an equidigital number, since it uses as much as digits as its factorization.

3342578821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 43.

The square root of 3342578821 is about 57815.0397474567. The cubic root of 3342578821 is about 1495.1813996728.

The spelling of 3342578821 in words is "three billion, three hundred forty-two million, five hundred seventy-eight thousand, eight hundred twenty-one".