520988716487 has 2 divisors, whose sum is σ = 520988716488. Its totient is φ = 520988716486.

The previous prime is 520988716439. The next prime is 520988716517. The reversal of 520988716487 is 784617889025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520988716487 - 2¹⁴ = 520988700103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520988716427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260494358243 + 260494358244.

It is an arithmetic number, because the mean of its divisors is an integer number (260494358244).

Almost surely, 2^520988716487 is an apocalyptic number.

520988716487 is a deficient number, since it is larger than the sum of its proper divisors (1).

520988716487 is an equidigital number, since it uses as much as digits as its factorization.

520988716487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54190080, while the sum is 65.

The spelling of 520988716487 in words is "five hundred twenty billion, nine hundred eighty-eight million, seven hundred sixteen thousand, four hundred eighty-seven".