828520766503 has 2 divisors, whose sum is σ = 828520766504. Its totient is φ = 828520766502.

The previous prime is 828520766449. The next prime is 828520766533. The reversal of 828520766503 is 305667025828.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 828520766503 - 2²¹ = 828518669351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828520766533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414260383251 + 414260383252.

It is an arithmetic number, because the mean of its divisors is an integer number (414260383252).

Almost surely, 2^828520766503 is an apocalyptic number.

828520766503 is a deficient number, since it is larger than the sum of its proper divisors (1).

828520766503 is an equidigital number, since it uses as much as digits as its factorization.

828520766503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 828520766503 in words is "eight hundred twenty-eight billion, five hundred twenty million, seven hundred sixty-six thousand, five hundred three".