6321492409 has 2 divisors, whose sum is σ = 6321492410. Its totient is φ = 6321492408.

The previous prime is 6321492391. The next prime is 6321492467. The reversal of 6321492409 is 9042941236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3608645184 + 2712847225 = 60072^2 + 52085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6321492409 is a prime.

It is a super-2 number, since 2×6321492409² = 79922532554089246562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6321492469) 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, 3160746204 + 3160746205.

It is an arithmetic number, because the mean of its divisors is an integer number (3160746205).

Almost surely, 2^6321492409 is an apocalyptic number.

It is an amenable number.

6321492409 is a deficient number, since it is larger than the sum of its proper divisors (1).

6321492409 is an equidigital number, since it uses as much as digits as its factorization.

6321492409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 6321492409 is about 79507.8135091137. The cubic root of 6321492409 is about 1849.0126125229.

The spelling of 6321492409 in words is "six billion, three hundred twenty-one million, four hundred ninety-two thousand, four hundred nine".