345312636433 has 4 divisors (see below), whose sum is σ = 345706380340. Its totient is φ = 344918892528.

The previous prime is 345312636371. The next prime is 345312636443. The reversal of 345312636433 is 334636213543.

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 320505441424 + 24807195009 = 566132^2 + 157503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345312636433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345312636433.

It is not an unprimeable number, because it can be changed into a prime (345312636443) 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, 196870638 + ... + 196872391.

It is an arithmetic number, because the mean of its divisors is an integer number (86426595085).

Almost surely, 2^345312636433 is an apocalyptic number.

It is an amenable number.

345312636433 is a deficient number, since it is larger than the sum of its proper divisors (393743907).

345312636433 is an equidigital number, since it uses as much as digits as its factorization.

345312636433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393743906.

The product of its digits is 1399680, while the sum is 43.

Adding to 345312636433 its reverse (334636213543), we get a palindrome (679948849976).

The spelling of 345312636433 in words is "three hundred forty-five billion, three hundred twelve million, six hundred thirty-six thousand, four hundred thirty-three".