506420520740 has 12 divisors (see below), whose sum is σ = 1063483093596. Its totient is φ = 202568208288.

The previous prime is 506420520719. The next prime is 506420520743. The reversal of 506420520740 is 47025024605.

It can be written as a sum of positive squares in 2 ways, for example, as 182752830016 + 323667690724 = 427496^2 + 568918^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 506420520740.

It is not an unprimeable number, because it can be changed into a prime (506420520743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12660512999 + ... + 12660513038.

It is an arithmetic number, because the mean of its divisors is an integer number (88623591133).

Almost surely, 2^506420520740 is an apocalyptic number.

It is an amenable number.

506420520740 is an abundant number, since it is smaller than the sum of its proper divisors (557062572856).

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

506420520740 is a wasteful number, since it uses less digits than its factorization.

506420520740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25321026046 (or 25321026044 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 506420520740 in words is "five hundred six billion, four hundred twenty million, five hundred twenty thousand, seven hundred forty".