507805385420 has 24 divisors (see below), whose sum is σ = 1069250283024. Its totient is φ = 202577587776.

The previous prime is 507805385407. The next prime is 507805385431. The reversal of 507805385420 is 24583508705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34027754 + ... + 34042673.

It is an arithmetic number, because the mean of its divisors is an integer number (44552095126).

Almost surely, 2^507805385420 is an apocalyptic number.

It is an amenable number.

507805385420 is an abundant number, since it is smaller than the sum of its proper divisors (561444897604).

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

507805385420 is a wasteful number, since it uses less digits than its factorization.

507805385420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68070809 (or 68070807 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 47.

The spelling of 507805385420 in words is "five hundred seven billion, eight hundred five million, three hundred eighty-five thousand, four hundred twenty".