38987797663896 has 32 divisors (see below), whose sum is σ = 97557383761200. Its totient is φ = 12984213941120.

The previous prime is 38987797663847. The next prime is 38987797663897. The reversal of 38987797663896 is 69836679778983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38987797663897) 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, 732386175 + ... + 732439406.

Almost surely, 2^{38987797663896} is an apocalyptic number.

It is an amenable number.

38987797663896 is an abundant number, since it is smaller than the sum of its proper divisors (58569586097304).

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

38987797663896 is a wasteful number, since it uses less digits than its factorization.

38987797663896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464826699 (or 1464826695 counting only the distinct ones).

The product of its digits is 248878780416, while the sum is 96.

The spelling of 38987797663896 in words is "thirty-eight trillion, nine hundred eighty-seven billion, seven hundred ninety-seven million, six hundred sixty-three thousand, eight hundred ninety-six".