520459331742 has 64 divisors (see below), whose sum is σ = 1323539136000. Its totient is φ = 148507179840.

The previous prime is 520459331687. The next prime is 520459331767. The reversal of 520459331742 is 247133954025.

It is a happy number.

520459331742 is a `hidden beast` number, since 5 + 2 + 0 + 4 + 593 + 3 + 17 + 42 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 616992 + ... + 1192307.

It is an arithmetic number, because the mean of its divisors is an integer number (20680299000).

Almost surely, 2^520459331742 is an apocalyptic number.

520459331742 is an abundant number, since it is smaller than the sum of its proper divisors (803079804258).

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

520459331742 is a wasteful number, since it uses less digits than its factorization.

520459331742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810078 (or 1810072 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 520459331742 in words is "five hundred twenty billion, four hundred fifty-nine million, three hundred thirty-one thousand, seven hundred forty-two".