1796798159809 has 3 divisors (see below), whose sum is σ = 1796799500257. Its totient is φ = 1796796819362.

The previous prime is 1796798159789. The next prime is 1796798159813. The reversal of 1796798159809 is 9089518976971.

The square root of 1796798159809 is 1340447.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1796798159809 - 2⁵ = 1796798159777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1796798159899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 670224 + ... + 2010670.

Almost surely, 2^{1796798159809} is an apocalyptic number.

1796798159809 is the 1340447-th square number.

1796798159809 is the 670224-th centered octagonal number.

It is an amenable number.

1796798159809 is a deficient number, since it is larger than the sum of its proper divisors (1340448).

1796798159809 is an frugal number, since it uses more digits than its factorization.

1796798159809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680894 (or 1340447 counting only the distinct ones).

The product of its (nonzero) digits is 617258880, while the sum is 79.

The spelling of 1796798159809 in words is "one trillion, seven hundred ninety-six billion, seven hundred ninety-eight million, one hundred fifty-nine thousand, eight hundred nine".