5368128909 has 32 divisors (see below), whose sum is σ = 8534367744. Its totient is φ = 2958310080.

The previous prime is 5368128869. The next prime is 5368129001. The reversal of 5368128909 is 9098218635.

It is a happy number.

It is not a de Polignac number, because 5368128909 - 2⁹ = 5368128397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5368128809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64639 + ... + 122124.

It is an arithmetic number, because the mean of its divisors is an integer number (266698992).

Almost surely, 2^5368128909 is an apocalyptic number.

It is an amenable number.

5368128909 is a deficient number, since it is larger than the sum of its proper divisors (3166238835).

5368128909 is a wasteful number, since it uses less digits than its factorization.

5368128909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186857.

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 5368128909 is about 73267.5160558893. The cubic root of 5368128909 is about 1750.9522881262.

The spelling of 5368128909 in words is "five billion, three hundred sixty-eight million, one hundred twenty-eight thousand, nine hundred nine".