5278382974566 has 24 divisors (see below), whose sum is σ = 12316226941200. Its totient is φ = 1624117838256.

The previous prime is 5278382974531. The next prime is 5278382974573. The reversal of 5278382974566 is 6654792838725.

5278382974566 is a `hidden beast` number, since 5 + 2 + 7 + 8 + 3 + 82 + 97 + 456 + 6 = 666.

It is a super-2 number, since 2×5278382974566² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5278382974494 and 5278382974503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11278595866 + ... + 11278596333.

It is an arithmetic number, because the mean of its divisors is an integer number (513176122550).

Almost surely, 2^{5278382974566} is an apocalyptic number.

5278382974566 is an abundant number, since it is smaller than the sum of its proper divisors (7037843966634).

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

5278382974566 is a wasteful number, since it uses less digits than its factorization.

5278382974566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22557192220 (or 22557192217 counting only the distinct ones).

The product of its digits is 1219276800, while the sum is 72.

The spelling of 5278382974566 in words is "five trillion, two hundred seventy-eight billion, three hundred eighty-two million, nine hundred seventy-four thousand, five hundred sixty-six".