38786668784 has 80 divisors (see below), whose sum is σ = 83884916736. Its totient is φ = 17287756800.

The previous prime is 38786668747. The next prime is 38786668793. The reversal of 38786668784 is 48786668783.

It is a happy number.

38786668784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347369 + ... + 445239.

Almost surely, 2^38786668784 is an apocalyptic number.

38786668784 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38786668784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41942458368).

38786668784 is an abundant number, since it is smaller than the sum of its proper divisors (45098247952).

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

38786668784 is a wasteful number, since it uses less digits than its factorization.

38786668784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97974 (or 97968 counting only the distinct ones).

The product of its digits is 520224768, while the sum is 71.

Subtracting 38786668784 from its reverse (48786668783), we obtain a palindrome (9999999999).

The spelling of 38786668784 in words is "thirty-eight billion, seven hundred eighty-six million, six hundred sixty-eight thousand, seven hundred eighty-four".