6343645623 has 8 divisors (see below), whose sum is σ = 9666507648. Its totient is φ = 3624940344.

The previous prime is 6343645589. The next prime is 6343645639. The reversal of 6343645623 is 3265463436.

6343645623 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-6343645623 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6343645643) 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, 151039161 + ... + 151039202.

It is an arithmetic number, because the mean of its divisors is an integer number (1208313456).

Almost surely, 2^6343645623 is an apocalyptic number.

6343645623 is a deficient number, since it is larger than the sum of its proper divisors (3322862025).

6343645623 is a wasteful number, since it uses less digits than its factorization.

6343645623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302078373.

The product of its digits is 933120, while the sum is 42.

The square root of 6343645623 is about 79647.0063655879. The cubic root of 6343645623 is about 1851.1700047666.

The spelling of 6343645623 in words is "six billion, three hundred forty-three million, six hundred forty-five thousand, six hundred twenty-three".