1608681084247 has 4 divisors (see below), whose sum is σ = 1608733842840. Its totient is φ = 1608628325656.

The previous prime is 1608681084229. The next prime is 1608681084259. The reversal of 1608681084247 is 7424801868061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1608681084247 - 2¹⁵ = 1608681051479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1608681081247) 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, 26333533 + ... + 26394550.

It is an arithmetic number, because the mean of its divisors is an integer number (402183460710).

Almost surely, 2^{1608681084247} is an apocalyptic number.

1608681084247 is a deficient number, since it is larger than the sum of its proper divisors (52758593).

1608681084247 is an equidigital number, since it uses as much as digits as its factorization.

1608681084247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52758592.

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 1608681084247 in words is "one trillion, six hundred eight billion, six hundred eighty-one million, eighty-four thousand, two hundred forty-seven".