520868787506 has 32 divisors (see below), whose sum is σ = 829266768000. Its totient is φ = 244837042560.

The previous prime is 520868787503. The next prime is 520868787577. The reversal of 520868787506 is 605787868025.

It is not an unprimeable number, because it can be changed into a prime (520868787503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14770976 + ... + 14806196.

It is an arithmetic number, because the mean of its divisors is an integer number (25914586500).

Almost surely, 2^520868787506 is an apocalyptic number.

520868787506 is a deficient number, since it is larger than the sum of its proper divisors (308397980494).

520868787506 is a wasteful number, since it uses less digits than its factorization.

520868787506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40754.

The product of its (nonzero) digits is 45158400, while the sum is 62.

The spelling of 520868787506 in words is "five hundred twenty billion, eight hundred sixty-eight million, seven hundred eighty-seven thousand, five hundred six".