5121958009 has 16 divisors (see below), whose sum is σ = 5873468800. Its totient is φ = 4375430784.

The previous prime is 5121957983. The next prime is 5121958013. The reversal of 5121958009 is 9008591215.

It is a cyclic number.

It is not a de Polignac number, because 5121958009 - 2¹⁹ = 5121433721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5121958409) 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, 4536157 + ... + 4537285.

It is an arithmetic number, because the mean of its divisors is an integer number (367091800).

Almost surely, 2^5121958009 is an apocalyptic number.

It is an amenable number.

5121958009 is a deficient number, since it is larger than the sum of its proper divisors (751510791).

5121958009 is a wasteful number, since it uses less digits than its factorization.

5121958009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752.

The product of its (nonzero) digits is 32400, while the sum is 40.

The square root of 5121958009 is about 71567.8559759897. The cubic root of 5121958009 is about 1723.7674324884.

The spelling of 5121958009 in words is "five billion, one hundred twenty-one million, nine hundred fifty-eight thousand, nine".