38789919487 has 6 divisors (see below), whose sum is σ = 42636853784. Its totient is φ = 35263563060.

The previous prime is 38789919431. The next prime is 38789919521. The reversal of 38789919487 is 78491998783.

38789919487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-38789919487 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 (38789919587) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 160288803 + ... + 160289044.

Almost surely, 2^38789919487 is an apocalyptic number.

38789919487 is a deficient number, since it is larger than the sum of its proper divisors (3846934297).

38789919487 is a wasteful number, since it uses less digits than its factorization.

38789919487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320577869 (or 320577858 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 73.

The spelling of 38789919487 in words is "thirty-eight billion, seven hundred eighty-nine million, nine hundred nineteen thousand, four hundred eighty-seven".