520044341881 has 3 divisors (see below), whose sum is σ = 520045063023. Its totient is φ = 520043620740.

The previous prime is 520044341833. The next prime is 520044341891. The reversal of 520044341881 is 188143440025.

The square root of 520044341881 is 721141.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 40377285481 + 479667056400 = 200941^2 + 692580^2 .

It is not a de Polignac number, because 520044341881 - 2¹⁹ = 520043817593 is a prime.

It is a super-2 number, since 2×520044341881² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520044341891) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 360571 + ... + 1081711.

It is an arithmetic number, because the mean of its divisors is an integer number (173348354341).

Almost surely, 2^520044341881 is an apocalyptic number.

520044341881 is the 721141-st square number.

520044341881 is the 360571-st centered octagonal number.

It is an amenable number.

520044341881 is a deficient number, since it is larger than the sum of its proper divisors (721142).

520044341881 is an frugal number, since it uses more digits than its factorization.

520044341881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442282 (or 721141 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The spelling of 520044341881 in words is "five hundred twenty billion, forty-four million, three hundred forty-one thousand, eight hundred eighty-one".