38387504780689 has 8 divisors (see below), whose sum is σ = 38651395344680. Its totient is φ = 38123859586176.

The previous prime is 38387504780627. The next prime is 38387504780707. The reversal of 38387504780689 is 98608740578383.

It can be written as a sum of positive squares in 4 ways, for example, as 17527686545664 + 20859818235025 = 4186608^2 + 4567255^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 38387504780689 - 2¹⁹ = 38387504256401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38387504780089) 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, 61028394 + ... + 61654195.

It is an arithmetic number, because the mean of its divisors is an integer number (4831424418085).

Almost surely, 2^{38387504780689} is an apocalyptic number.

It is an amenable number.

38387504780689 is a deficient number, since it is larger than the sum of its proper divisors (263890563991).

38387504780689 is a wasteful number, since it uses less digits than its factorization.

38387504780689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122684739.

The product of its (nonzero) digits is 1950842880, while the sum is 76.

The spelling of 38387504780689 in words is "thirty-eight trillion, three hundred eighty-seven billion, five hundred four million, seven hundred eighty thousand, six hundred eighty-nine".