5195638647 has 24 divisors (see below), whose sum is σ = 7802516176. Its totient is φ = 3454970112.

The previous prime is 5195638633. The next prime is 5195638649. The reversal of 5195638647 is 7468365915.

5195638647 is a `hidden beast` number, since 5 + 19 + 563 + 8 + 64 + 7 = 666.

It is not a de Polignac number, because 5195638647 - 2¹² = 5195634551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5195638593 and 5195638602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5195638649) 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, 69543 + ... + 123399.

Almost surely, 2^5195638647 is an apocalyptic number.

5195638647 is a deficient number, since it is larger than the sum of its proper divisors (2606877529).

5195638647 is an equidigital number, since it uses as much as digits as its factorization.

5195638647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54269 (or 54257 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 5195638647 is about 72080.7786237080. The cubic root of 5195638647 is about 1731.9937194977.

The spelling of 5195638647 in words is "five billion, one hundred ninety-five million, six hundred thirty-eight thousand, six hundred forty-seven".