520769471040 has 504 divisors, whose sum is σ = 2216718399168. Its totient is φ = 109875916800.

The previous prime is 520769470987. The next prime is 520769471099. The reversal of 520769471040 is 40174967025.

520769471040 is a `hidden beast` number, since 520 + 76 + 9 + 4 + 7 + 10 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3330615 + ... + 3483465.

It is an arithmetic number, because the mean of its divisors is an integer number (4398250792).

Almost surely, 2^520769471040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520769471040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1108359199584).

520769471040 is an abundant number, since it is smaller than the sum of its proper divisors (1695948928128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520769471040 is a wasteful number, since it uses less digits than its factorization.

520769471040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152907 (or 152881 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 520769471040 in words is "five hundred twenty billion, seven hundred sixty-nine million, four hundred seventy-one thousand, forty".