5009212468129 has 3 divisors (see below), whose sum is σ = 5009214706257. Its totient is φ = 5009210230002.

The previous prime is 5009212468121. The next prime is 5009212468181. The reversal of 5009212468129 is 9218642129005.

The square root of 5009212468129 is 2238127.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 5009212468129 - 2³ = 5009212468121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5009212468121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1119064 + ... + 3357190.

It is an arithmetic number, because the mean of its divisors is an integer number (1669738235419).

Almost surely, 2^{5009212468129} is an apocalyptic number.

5009212468129 is the 2238127-th square number.

5009212468129 is the 1119064-th centered octagonal number.

It is an amenable number.

5009212468129 is a deficient number, since it is larger than the sum of its proper divisors (2238128).

5009212468129 is an frugal number, since it uses more digits than its factorization.

5009212468129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4476254 (or 2238127 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

Multiplying 5009212468129 by its sum of digits (49), we get a square (245451410938321 = 15666889²).

The spelling of 5009212468129 in words is "five trillion, nine billion, two hundred twelve million, four hundred sixty-eight thousand, one hundred twenty-nine".