6413943285440 has 28 divisors (see below), whose sum is σ = 15273202449216. Its totient is φ = 2565577314048.

The previous prime is 6413943285439. The next prime is 6413943285473. The reversal of 6413943285440 is 445823493146.

It is a happy number.

It is a super-2 number, since 2×6413943285440² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10021786064 + ... + 10021786703.

Almost surely, 2^{6413943285440} is an apocalyptic number.

It is an amenable number.

6413943285440 is an abundant number, since it is smaller than the sum of its proper divisors (8859259163776).

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

6413943285440 is a wasteful number, since it uses less digits than its factorization.

6413943285440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20043572784 (or 20043572774 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 53.

The spelling of 6413943285440 in words is "six trillion, four hundred thirteen billion, nine hundred forty-three million, two hundred eighty-five thousand, four hundred forty".