5278664412 has 72 divisors (see below), whose sum is σ = 15477128576. Its totient is φ = 1485674784.

The previous prime is 5278664411. The next prime is 5278664429. The reversal of 5278664412 is 2144668725.

5278664412 is a `hidden beast` number, since 527 + 86 + 6 + 4 + 41 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5278664411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139438 + ... + 173205.

Almost surely, 2^5278664412 is an apocalyptic number.

It is an amenable number.

5278664412 is an abundant number, since it is smaller than the sum of its proper divisors (10198464164).

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

5278664412 is a wasteful number, since it uses less digits than its factorization.

5278664412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312727 (or 312722 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 5278664412 is about 72654.4177046379. The cubic root of 5278664412 is about 1741.1707024436.

The spelling of 5278664412 in words is "five billion, two hundred seventy-eight million, six hundred sixty-four thousand, four hundred twelve".