6138198747 has 6 divisors (see below), whose sum is σ = 8866287092. Its totient is φ = 4092132492.

The previous prime is 6138198733. The next prime is 6138198791. The reversal of 6138198747 is 7478918316.

6138198747 is a `hidden beast` number, since 613 + 8 + 19 + 8 + 7 + 4 + 7 = 666.

It is not a de Polignac number, because 6138198747 - 2²⁰ = 6137150171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6138198693 and 6138198702.

It is not an unprimeable number, because it can be changed into a prime (6138198707) 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 5 ways as a sum of consecutive naturals, for example, 341011033 + ... + 341011050.

Almost surely, 2^6138198747 is an apocalyptic number.

6138198747 is a deficient number, since it is larger than the sum of its proper divisors (2728088345).

6138198747 is a wasteful number, since it uses less digits than its factorization.

6138198747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682022089 (or 682022086 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 6138198747 is about 78346.6575355962. The cubic root of 6138198747 is about 1830.9661502263.

The spelling of 6138198747 in words is "six billion, one hundred thirty-eight million, one hundred ninety-eight thousand, seven hundred forty-seven".