520541823847 has 8 divisors (see below), whose sum is σ = 537366602880. Its totient is φ = 503719114080.

The previous prime is 520541823821. The next prime is 520541823871. The reversal of 520541823847 is 748328145025.

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

It is not a de Polignac number, because 520541823847 - 2²⁷ = 520407606119 is a prime.

It is a super-2 number, since 2×520541823847² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520541823847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520541821847) 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 7 ways as a sum of consecutive naturals, for example, 2229 + ... + 1020337.

It is an arithmetic number, because the mean of its divisors is an integer number (67170825360).

Almost surely, 2^520541823847 is an apocalyptic number.

520541823847 is a deficient number, since it is larger than the sum of its proper divisors (16824779033).

520541823847 is a wasteful number, since it uses less digits than its factorization.

520541823847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034633.

The product of its (nonzero) digits is 2150400, while the sum is 49.

The spelling of 520541823847 in words is "five hundred twenty billion, five hundred forty-one million, eight hundred twenty-three thousand, eight hundred forty-seven".