520456728601 has 8 divisors (see below), whose sum is σ = 521815845824. Its totient is φ = 519099379920.

The previous prime is 520456728527. The next prime is 520456728607. The reversal of 520456728601 is 106827654025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520456728601 - 2²³ = 520448339993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520456728607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148231 + ... + 1030963.

It is an arithmetic number, because the mean of its divisors is an integer number (65226980728).

Almost surely, 2^520456728601 is an apocalyptic number.

It is an amenable number.

520456728601 is a deficient number, since it is larger than the sum of its proper divisors (1359117223).

520456728601 is an equidigital number, since it uses as much as digits as its factorization.

520456728601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884271.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 520456728601 in words is "five hundred twenty billion, four hundred fifty-six million, seven hundred twenty-eight thousand, six hundred one".