38665744353728 has 56 divisors (see below), whose sum is σ = 80957460711120. Its totient is φ = 18271847946240.

The previous prime is 38665744353703. The next prime is 38665744353751. The reversal of 38665744353728 is 82735344756683.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37252301 + ... + 38276172.

It is an arithmetic number, because the mean of its divisors is an integer number (1445668941270).

Almost surely, 2^{38665744353728} is an apocalyptic number.

38665744353728 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

38665744353728 is an abundant number, since it is smaller than the sum of its proper divisors (42291716357392).

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

38665744353728 is a wasteful number, since it uses less digits than its factorization.

38665744353728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75528925 (or 75528915 counting only the distinct ones).

The product of its digits is 2438553600, while the sum is 71.

The spelling of 38665744353728 in words is "thirty-eight trillion, six hundred sixty-five billion, seven hundred forty-four million, three hundred fifty-three thousand, seven hundred twenty-eight".