6394451513340 has 48 divisors (see below), whose sum is σ = 19532142806400. Its totient is φ = 1550170063680.

The previous prime is 6394451513323. The next prime is 6394451513371. The reversal of 6394451513340 is 433151544936.

It is a self number, because there is not a number n which added to its sum of digits gives 6394451513340.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4844280790 + ... + 4844282109.

It is an arithmetic number, because the mean of its divisors is an integer number (406919641800).

Almost surely, 2^{6394451513340} is an apocalyptic number.

6394451513340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6394451513340 is an abundant number, since it is smaller than the sum of its proper divisors (13137691293060).

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

6394451513340 is a wasteful number, since it uses less digits than its factorization.

6394451513340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9688562922 (or 9688562920 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 6394451513340 in words is "six trillion, three hundred ninety-four billion, four hundred fifty-one million, five hundred thirteen thousand, three hundred forty".