6343887451394 has 16 divisors (see below), whose sum is σ = 10139761667448. Its totient is φ = 2966343773952.

The previous prime is 6343887451381. The next prime is 6343887451423. The reversal of 6343887451394 is 4931547883436.

It can be written as a sum of positive squares in 4 ways, for example, as 5792989500769 + 550897950625 = 2406863^2 + 742225^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6343887451394.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594214169 + ... + 594224844.

Almost surely, 2^{6343887451394} is an apocalyptic number.

6343887451394 is a deficient number, since it is larger than the sum of its proper divisors (3795874216054).

6343887451394 is a wasteful number, since it uses less digits than its factorization.

6343887451394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188439189.

The product of its digits is 209018880, while the sum is 65.

The spelling of 6343887451394 in words is "six trillion, three hundred forty-three billion, eight hundred eighty-seven million, four hundred fifty-one thousand, three hundred ninety-four".