2662408409 has 2 divisors, whose sum is σ = 2662408410. Its totient is φ = 2662408408.

The previous prime is 2662408387. The next prime is 2662408429. The reversal of 2662408409 is 9048042662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1821582400 + 840826009 = 42680^2 + 28997^2 .

It is a cyclic number.

It is not a de Polignac number, because 2662408409 - 2⁸ = 2662408153 is a prime.

It is a super-2 number, since 2×2662408409² = 14176837072627822562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2662408429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331204204 + 1331204205.

It is an arithmetic number, because the mean of its divisors is an integer number (1331204205).

Almost surely, 2^2662408409 is an apocalyptic number.

It is an amenable number.

2662408409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2662408409 is an equidigital number, since it uses as much as digits as its factorization.

2662408409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 2662408409 is about 51598.5310740529. The cubic root of 2662408409 is about 1385.9840277195.

The spelling of 2662408409 in words is "two billion, six hundred sixty-two million, four hundred eight thousand, four hundred nine".