3621808009049 has 4 divisors (see below), whose sum is σ = 3624204971520. Its totient is φ = 3619411046580.

The previous prime is 3621808009037. The next prime is 3621808009117. The reversal of 3621808009049 is 9409008081263.

It is a happy number.

3621808009049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3621808009049 - 2²⁸ = 3621539573593 is a prime.

It is a super-2 number, since 2×3621808009049² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3621808008988 and 3621808009006.

It is not an unprimeable number, because it can be changed into a prime (3621808009349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1198478969 + ... + 1198481990.

It is an arithmetic number, because the mean of its divisors is an integer number (906051242880).

Almost surely, 2^{3621808009049} is an apocalyptic number.

It is an amenable number.

3621808009049 is a deficient number, since it is larger than the sum of its proper divisors (2396962471).

3621808009049 is a wasteful number, since it uses less digits than its factorization.

3621808009049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396962470.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 3621808009049 in words is "three trillion, six hundred twenty-one billion, eight hundred eight million, nine thousand, forty-nine".