528083307691 has 2 divisors, whose sum is σ = 528083307692. Its totient is φ = 528083307690.

The previous prime is 528083307589. The next prime is 528083307749. The reversal of 528083307691 is 196703380825.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-528083307691 is a prime.

It is not a weakly prime, because it can be changed into another prime (528083307091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264041653845 + 264041653846.

It is an arithmetic number, because the mean of its divisors is an integer number (264041653846).

Almost surely, 2^528083307691 is an apocalyptic number.

528083307691 is a deficient number, since it is larger than the sum of its proper divisors (1).

528083307691 is an equidigital number, since it uses as much as digits as its factorization.

528083307691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 528083307691 in words is "five hundred twenty-eight billion, eighty-three million, three hundred seven thousand, six hundred ninety-one".