5100509999 has 16 divisors (see below), whose sum is σ = 5625474624. Its totient is φ = 4595808000.

The previous prime is 5100509987. The next prime is 5100510001. The reversal of 5100509999 is 9999050015.

It is a cyclic number.

It is not a de Polignac number, because 5100509999 - 2¹⁶ = 5100444463 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 (5100502999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65867 + ... + 120579.

It is an arithmetic number, because the mean of its divisors is an integer number (351592164).

Almost surely, 2^5100509999 is an apocalyptic number.

5100509999 is a deficient number, since it is larger than the sum of its proper divisors (524964625).

5100509999 is a wasteful number, since it uses less digits than its factorization.

5100509999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54898.

The product of its (nonzero) digits is 164025, while the sum is 47.

The square root of 5100509999 is about 71417.8549033783. The cubic root of 5100509999 is about 1721.3579953887.

The spelling of 5100509999 in words is "five billion, one hundred million, five hundred nine thousand, nine hundred ninety-nine".