6434133544640 has 56 divisors (see below), whose sum is σ = 15531161114400. Its totient is φ = 2538397882368.

The previous prime is 6434133544603. The next prime is 6434133544661. The reversal of 6434133544640 is 464453314346.

It is an unprimeable number.

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, 137693540 + ... + 137740259.

Almost surely, 2^{6434133544640} is an apocalyptic number.

It is an amenable number.

6434133544640 is an abundant number, since it is smaller than the sum of its proper divisors (9097027569760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6434133544640 is a wasteful number, since it uses less digits than its factorization.

6434133544640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275433889 (or 275433879 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 47.

Adding to 6434133544640 its reverse (464453314346), we get a palindrome (6898586858986).

The spelling of 6434133544640 in words is "six trillion, four hundred thirty-four billion, one hundred thirty-three million, five hundred forty-four thousand, six hundred forty".