38987797663799 has 8 divisors (see below), whose sum is σ = 39939582051600. Its totient is φ = 38036054347200.

The previous prime is 38987797663753. The next prime is 38987797663819. The reversal of 38987797663799 is 99736679778983.

38987797663799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-38987797663799 is a prime.

It is a super-2 number, since 2×38987797663799² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38987797663709) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8341724 + ... + 12147425.

It is an arithmetic number, because the mean of its divisors is an integer number (4992447756450).

Almost surely, 2^{38987797663799} is an apocalyptic number.

38987797663799 is a deficient number, since it is larger than the sum of its proper divisors (951784387801).

38987797663799 is a wasteful number, since it uses less digits than its factorization.

38987797663799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20535601.

The product of its digits is 326653399296, while the sum is 98.

The spelling of 38987797663799 in words is "thirty-eight trillion, nine hundred eighty-seven billion, seven hundred ninety-seven million, six hundred sixty-three thousand, seven hundred ninety-nine".