520011063391 has 8 divisors (see below), whose sum is σ = 546761210400. Its totient is φ = 493848831840.

The previous prime is 520011063389. The next prime is 520011063419. The reversal of 520011063391 is 193360110025.

It is a happy number.

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 520011063391 - 2¹ = 520011063389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520011063371) 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, 146977051 + ... + 146980588.

It is an arithmetic number, because the mean of its divisors is an integer number (68345151300).

Almost surely, 2^520011063391 is an apocalyptic number.

520011063391 is a deficient number, since it is larger than the sum of its proper divisors (26750147009).

520011063391 is a wasteful number, since it uses less digits than its factorization.

520011063391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293957729.

The product of its (nonzero) digits is 4860, while the sum is 31.

The spelling of 520011063391 in words is "five hundred twenty billion, eleven million, sixty-three thousand, three hundred ninety-one".