645302310433 has 8 divisors (see below), whose sum is σ = 706507554240. Its totient is φ = 584520632880.

The previous prime is 645302310431. The next prime is 645302310437. The reversal of 645302310433 is 334013203546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 645302310433 - 2¹ = 645302310431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (645302310431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105888373 + ... + 105894466.

It is an arithmetic number, because the mean of its divisors is an integer number (88313444280).

Almost surely, 2^645302310433 is an apocalyptic number.

It is an amenable number.

645302310433 is a deficient number, since it is larger than the sum of its proper divisors (61205243807).

645302310433 is a wasteful number, since it uses less digits than its factorization.

645302310433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211783127.

The product of its (nonzero) digits is 77760, while the sum is 34.

Adding to 645302310433 its reverse (334013203546), we get a palindrome (979315513979).

The spelling of 645302310433 in words is "six hundred forty-five billion, three hundred two million, three hundred ten thousand, four hundred thirty-three".