520754813447 has 8 divisors (see below), whose sum is σ = 568101824640. Its totient is φ = 473408746360.

The previous prime is 520754813443. The next prime is 520754813471. The reversal of 520754813447 is 744318457025.

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

It is not a de Polignac number, because 520754813447 - 2² = 520754813443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520754813395 and 520754813404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520754813443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1426454 + ... + 1753932.

It is an arithmetic number, because the mean of its divisors is an integer number (71012728080).

Almost surely, 2^520754813447 is an apocalyptic number.

520754813447 is a deficient number, since it is larger than the sum of its proper divisors (47347011193).

520754813447 is a wasteful number, since it uses less digits than its factorization.

520754813447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472053.

The product of its (nonzero) digits is 3763200, while the sum is 50.

The spelling of 520754813447 in words is "five hundred twenty billion, seven hundred fifty-four million, eight hundred thirteen thousand, four hundred forty-seven".