6389638134 has 16 divisors (see below), whose sum is σ = 13941028800. Its totient is φ = 1936253960.

The previous prime is 6389638051. The next prime is 6389638159. The reversal of 6389638134 is 4318369836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48406284 + ... + 48406415.

It is an arithmetic number, because the mean of its divisors is an integer number (871314300).

Almost surely, 2^6389638134 is an apocalyptic number.

6389638134 is an abundant number, since it is smaller than the sum of its proper divisors (7551390666).

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

6389638134 is a wasteful number, since it uses less digits than its factorization.

6389638134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96812715.

The product of its digits is 2239488, while the sum is 51.

The square root of 6389638134 is about 79935.2121033028. The cubic root of 6389638134 is about 1855.6330021720.

The spelling of 6389638134 in words is "six billion, three hundred eighty-nine million, six hundred thirty-eight thousand, one hundred thirty-four".