5186638399 has 8 divisors (see below), whose sum is σ = 5279337200. Its totient is φ = 5094187200.

The previous prime is 5186638397. The next prime is 5186638421. The reversal of 5186638399 is 9938366815.

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

It is a cyclic number.

It is not a de Polignac number, because 5186638399 - 2¹ = 5186638397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5186638397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19374 + ... + 103675.

It is an arithmetic number, because the mean of its divisors is an integer number (659917150).

Almost surely, 2^5186638399 is an apocalyptic number.

5186638399 is a deficient number, since it is larger than the sum of its proper divisors (92698801).

5186638399 is a wasteful number, since it uses less digits than its factorization.

5186638399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123801.

The product of its digits is 8398080, while the sum is 58.

The square root of 5186638399 is about 72018.3198845960. The cubic root of 5186638399 is about 1730.9930479838.

The spelling of 5186638399 in words is "five billion, one hundred eighty-six million, six hundred thirty-eight thousand, three hundred ninety-nine".