507278775516 has 12 divisors (see below), whose sum is σ = 1183650476232. Its totient is φ = 169092925168.

The previous prime is 507278775491. The next prime is 507278775557. The reversal of 507278775516 is 615577872705.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 507278775516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21136615635 + ... + 21136615658.

It is an arithmetic number, because the mean of its divisors is an integer number (98637539686).

Almost surely, 2^507278775516 is an apocalyptic number.

It is an amenable number.

507278775516 is an abundant number, since it is smaller than the sum of its proper divisors (676371700716).

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

507278775516 is a wasteful number, since it uses less digits than its factorization.

507278775516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42273231300 (or 42273231298 counting only the distinct ones).

The product of its (nonzero) digits is 28812000, while the sum is 60.

The spelling of 507278775516 in words is "five hundred seven billion, two hundred seventy-eight million, seven hundred seventy-five thousand, five hundred sixteen".