6438633147 has 24 divisors (see below), whose sum is σ = 9373759200. Its totient is φ = 4258563840.

The previous prime is 6438633121. The next prime is 6438633203. The reversal of 6438633147 is 7413368346.

6438633147 is a `hidden beast` number, since 6 + 4 + 3 + 8 + 633 + 1 + 4 + 7 = 666.

It is not a de Polignac number, because 6438633147 - 2¹⁵ = 6438600379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6438633247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1380243 + ... + 1384899.

It is an arithmetic number, because the mean of its divisors is an integer number (390573300).

Almost surely, 2^6438633147 is an apocalyptic number.

6438633147 is a deficient number, since it is larger than the sum of its proper divisors (2935126053).

6438633147 is a wasteful number, since it uses less digits than its factorization.

6438633147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843 (or 5840 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The square root of 6438633147 is about 80241.0938796325. The cubic root of 6438633147 is about 1860.3638578835.

The spelling of 6438633147 in words is "six billion, four hundred thirty-eight million, six hundred thirty-three thousand, one hundred forty-seven".