5168385554 has 8 divisors (see below), whose sum is σ = 7809166908. Its totient is φ = 2565329920.

The previous prime is 5168385461. The next prime is 5168385557. The reversal of 5168385554 is 4555838615.

It can be written as a sum of positive squares in 2 ways, for example, as 4764174529 + 404211025 = 69023^2 + 20105^2 .

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

It is a super-3 number, since 3×5168385554³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (5168385557) 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, 9431087 + ... + 9431634.

Almost surely, 2^5168385554 is an apocalyptic number.

5168385554 is a deficient number, since it is larger than the sum of its proper divisors (2640781354).

5168385554 is a wasteful number, since it uses less digits than its factorization.

5168385554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18862860.

The product of its digits is 2880000, while the sum is 50.

The square root of 5168385554 is about 71891.4845722357. The cubic root of 5168385554 is about 1728.9600880496.

The spelling of 5168385554 in words is "five billion, one hundred sixty-eight million, three hundred eighty-five thousand, five hundred fifty-four".