2809997324449 has 16 divisors (see below), whose sum is σ = 3278709038080. Its totient is φ = 2358460618560.

The previous prime is 2809997324443. The next prime is 2809997324461. The reversal of 2809997324449 is 9444237999082.

It is a cyclic number.

It is not a de Polignac number, because 2809997324449 - 2⁹ = 2809997323937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2809997324443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14659914 + ... + 14850355.

It is an arithmetic number, because the mean of its divisors is an integer number (204919314880).

Almost surely, 2^{2809997324449} is an apocalyptic number.

It is an amenable number.

2809997324449 is a deficient number, since it is larger than the sum of its proper divisors (468711713631).

2809997324449 is a wasteful number, since it uses less digits than its factorization.

2809997324449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29510560.

The product of its (nonzero) digits is 282175488, while the sum is 70.

The spelling of 2809997324449 in words is "two trillion, eight hundred nine billion, nine hundred ninety-seven million, three hundred twenty-four thousand, four hundred forty-nine".