528721425913 has 2 divisors, whose sum is σ = 528721425914. Its totient is φ = 528721425912.

The previous prime is 528721425871. The next prime is 528721425919. The reversal of 528721425913 is 319524127825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 525165450489 + 3555975424 = 724683^2 + 59632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-528721425913 is a prime.

It is not a weakly prime, because it can be changed into another prime (528721425919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264360712956 + 264360712957.

It is an arithmetic number, because the mean of its divisors is an integer number (264360712957).

Almost surely, 2^528721425913 is an apocalyptic number.

It is an amenable number.

528721425913 is a deficient number, since it is larger than the sum of its proper divisors (1).

528721425913 is an equidigital number, since it uses as much as digits as its factorization.

528721425913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 49.

The spelling of 528721425913 in words is "five hundred twenty-eight billion, seven hundred twenty-one million, four hundred twenty-five thousand, nine hundred thirteen".