1346823854909 has 4 divisors (see below), whose sum is σ = 1450425689916. Its totient is φ = 1243222019904.

The previous prime is 1346823854851. The next prime is 1346823854911. The reversal of 1346823854909 is 9094583286431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 429293592025 + 917530262884 = 655205^2 + 957878^2 .

It is a cyclic number.

It is not a de Polignac number, because 1346823854909 - 2⁸ = 1346823854653 is a prime.

It is a super-4 number, since 4×1346823854909⁴ (a number of 50 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346823854989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51800917484 + ... + 51800917509.

It is an arithmetic number, because the mean of its divisors is an integer number (362606422479).

Almost surely, 2^{1346823854909} is an apocalyptic number.

It is an amenable number.

1346823854909 is a deficient number, since it is larger than the sum of its proper divisors (103601835007).

1346823854909 is a wasteful number, since it uses less digits than its factorization.

1346823854909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103601835006.

The product of its (nonzero) digits is 44789760, while the sum is 62.

The spelling of 1346823854909 in words is "one trillion, three hundred forty-six billion, eight hundred twenty-three million, eight hundred fifty-four thousand, nine hundred nine".