52121646329 has 2 divisors, whose sum is σ = 52121646330. Its totient is φ = 52121646328.

The previous prime is 52121646293. The next prime is 52121646341. The reversal of 52121646329 is 92364612125.

Together with previous prime (52121646293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51401958400 + 719687929 = 226720^2 + 26827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52121646329 is a prime.

It is not a weakly prime, because it can be changed into another prime (52121676329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26060823164 + 26060823165.

It is an arithmetic number, because the mean of its divisors is an integer number (26060823165).

Almost surely, 2^52121646329 is an apocalyptic number.

It is an amenable number.

52121646329 is a deficient number, since it is larger than the sum of its proper divisors (1).

52121646329 is an equidigital number, since it uses as much as digits as its factorization.

52121646329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The spelling of 52121646329 in words is "fifty-two billion, one hundred twenty-one million, six hundred forty-six thousand, three hundred twenty-nine".