520726466607 has 16 divisors (see below), whose sum is σ = 711707109120. Its totient is φ = 338459614400.

The previous prime is 520726466551. The next prime is 520726466621. The reversal of 520726466607 is 706664627025.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 520726466607 - 2¹⁵ = 520726433839 is a prime.

It is a super-3 number, since 3×520726466607³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 520726466607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520726466627) 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 in 15 ways as a sum of consecutive naturals, for example, 1215057 + ... + 1586762.

It is an arithmetic number, because the mean of its divisors is an integer number (44481694320).

Almost surely, 2^520726466607 is an apocalyptic number.

520726466607 is a deficient number, since it is larger than the sum of its proper divisors (190980642513).

520726466607 is a wasteful number, since it uses less digits than its factorization.

520726466607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803374.

The product of its (nonzero) digits is 5080320, while the sum is 51.

The spelling of 520726466607 in words is "five hundred twenty billion, seven hundred twenty-six million, four hundred sixty-six thousand, six hundred seven".