38817294081749 has 8 divisors (see below), whose sum is σ = 39814368714912. Its totient is φ = 37824507942480.

The previous prime is 38817294081743. The next prime is 38817294081779. The reversal of 38817294081749 is 94718049271883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38817294081749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38817294081743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072105139 + ... + 1072141344.

It is an arithmetic number, because the mean of its divisors is an integer number (4976796089364).

Almost surely, 2^{38817294081749} is an apocalyptic number.

It is an amenable number.

38817294081749 is a deficient number, since it is larger than the sum of its proper divisors (997074633163).

38817294081749 is a wasteful number, since it uses less digits than its factorization.

38817294081749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144246947.

The product of its (nonzero) digits is 195084288, while the sum is 71.

The spelling of 38817294081749 in words is "thirty-eight trillion, eight hundred seventeen billion, two hundred ninety-four million, eighty-one thousand, seven hundred forty-nine".