6386922168638 has 16 divisors (see below), whose sum is σ = 10648522039536. Its totient is φ = 2848370091840.

The previous prime is 6386922168611. The next prime is 6386922168647. The reversal of 6386922168638 is 8368612296836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2738816231 + ... + 2738818562.

It is an arithmetic number, because the mean of its divisors is an integer number (665532627471).

Almost surely, 2^{6386922168638} is an apocalyptic number.

6386922168638 is a deficient number, since it is larger than the sum of its proper divisors (4261599870898).

6386922168638 is a wasteful number, since it uses less digits than its factorization.

6386922168638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5477634859.

The product of its digits is 214990848, while the sum is 68.

The spelling of 6386922168638 in words is "six trillion, three hundred eighty-six billion, nine hundred twenty-two million, one hundred sixty-eight thousand, six hundred thirty-eight".