345786185009 has 4 divisors (see below), whose sum is σ = 347131656804. Its totient is φ = 344440713216.

The previous prime is 345786184993. The next prime is 345786185027. The reversal of 345786185009 is 900581687543.

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 333823950625 + 11962234384 = 577775^2 + 109372^2 .

It is a cyclic number.

It is not a de Polignac number, because 345786185009 - 2⁴ = 345786184993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345786185039) 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 3 ways as a sum of consecutive naturals, for example, 672735512 + ... + 672736025.

It is an arithmetic number, because the mean of its divisors is an integer number (86782914201).

Almost surely, 2^345786185009 is an apocalyptic number.

It is an amenable number.

345786185009 is a deficient number, since it is larger than the sum of its proper divisors (1345471795).

345786185009 is a wasteful number, since it uses less digits than its factorization.

345786185009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345471794.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 345786185009 in words is "three hundred forty-five billion, seven hundred eighty-six million, one hundred eighty-five thousand, nine".