6138547874 has 8 divisors (see below), whose sum is σ = 9381554460. Its totient is φ = 3011363056.

The previous prime is 6138547871. The next prime is 6138547897. The reversal of 6138547874 is 4787458316.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5825505625 + 313042249 = 76325^2 + 17693^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (6138547871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28955309 + ... + 28955520.

Almost surely, 2^6138547874 is an apocalyptic number.

6138547874 is a deficient number, since it is larger than the sum of its proper divisors (3243006586).

6138547874 is a wasteful number, since it uses less digits than its factorization.

6138547874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57910884.

The product of its digits is 4515840, while the sum is 53.

The square root of 6138547874 is about 78348.8855951379. The cubic root of 6138547874 is about 1831.0008633197. Note that the first 3 decimals are identical.

The spelling of 6138547874 in words is "six billion, one hundred thirty-eight million, five hundred forty-seven thousand, eight hundred seventy-four".