6381388193756 has 12 divisors (see below), whose sum is σ = 11170350482592. Its totient is φ = 3189859484448.

The previous prime is 6381388193737. The next prime is 6381388193797. The reversal of 6381388193756 is 6573918831836.

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 3 ways as a sum of consecutive naturals, for example, 208635905 + ... + 208666488.

It is an arithmetic number, because the mean of its divisors is an integer number (930862540216).

Almost surely, 2^{6381388193756} is an apocalyptic number.

It is an amenable number.

6381388193756 is a deficient number, since it is larger than the sum of its proper divisors (4788962288836).

6381388193756 is a wasteful number, since it uses less digits than its factorization.

6381388193756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417306220 (or 417306218 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 68.

The spelling of 6381388193756 in words is "six trillion, three hundred eighty-one billion, three hundred eighty-eight million, one hundred ninety-three thousand, seven hundred fifty-six".