5121708929 has 2 divisors, whose sum is σ = 5121708930. Its totient is φ = 5121708928.

The previous prime is 5121708919. The next prime is 5121708947. The reversal of 5121708929 is 9298071215.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4861854529 + 259854400 = 69727^2 + 16120^2 .

It is a cyclic number.

It is not a de Polignac number, because 5121708929 - 2²⁰ = 5120660353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5121708929.

It is not a weakly prime, because it can be changed into another prime (5121708919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560854464 + 2560854465.

It is an arithmetic number, because the mean of its divisors is an integer number (2560854465).

Almost surely, 2^5121708929 is an apocalyptic number.

It is an amenable number.

5121708929 is a deficient number, since it is larger than the sum of its proper divisors (1).

5121708929 is an equidigital number, since it uses as much as digits as its factorization.

5121708929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 5121708929 is about 71566.1157881298. The cubic root of 5121708929 is about 1723.7394898572.

The spelling of 5121708929 in words is "five billion, one hundred twenty-one million, seven hundred eight thousand, nine hundred twenty-nine".