8001809736409 has 8 divisors (see below), whose sum is σ = 8472529147680. Its totient is φ = 7531093071936.

The previous prime is 8001809736377. The next prime is 8001809736421. The reversal of 8001809736409 is 9046379081008.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8001809736409 - 2⁵ = 8001809736377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8001809736409.

It is not an unprimeable number, because it can be changed into a prime (8001809736709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10820242 + ... + 11536084.

It is an arithmetic number, because the mean of its divisors is an integer number (1059066143460).

Almost surely, 2^{8001809736409} is an apocalyptic number.

It is an amenable number.

8001809736409 is a deficient number, since it is larger than the sum of its proper divisors (470719411271).

8001809736409 is a wasteful number, since it uses less digits than its factorization.

8001809736409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373399.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 8001809736409 in words is "eight trillion, one billion, eight hundred nine million, seven hundred thirty-six thousand, four hundred nine".