8581694409409 has 8 divisors (see below), whose sum is σ = 9854577312480. Its totient is φ = 7390932984000.

The previous prime is 8581694409377. The next prime is 8581694409437. The reversal of 8581694409409 is 9049044961858.

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 8581694409409 - 2⁵ = 8581694409377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8581694409469) 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, 20530369192 + ... + 20530369609.

It is an arithmetic number, because the mean of its divisors is an integer number (1231822164060).

Almost surely, 2^{8581694409409} is an apocalyptic number.

It is an amenable number.

8581694409409 is a deficient number, since it is larger than the sum of its proper divisors (1272882903071).

8581694409409 is a wasteful number, since it uses less digits than its factorization.

8581694409409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41060738831.

The product of its (nonzero) digits is 89579520, while the sum is 67.

The spelling of 8581694409409 in words is "eight trillion, five hundred eighty-one billion, six hundred ninety-four million, four hundred nine thousand, four hundred nine".