27389379456 has 96 divisors (see below), whose sum is σ = 83452075200. Its totient is φ = 8592740352.

The previous prime is 27389379421. The next prime is 27389379461. The reversal of 27389379456 is 65497398372.

27389379456 is a `hidden beast` number, since 2 + 73 + 89 + 37 + 9 + 456 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 27389379393 and 27389379402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 679696 + ... + 718863.

It is an arithmetic number, because the mean of its divisors is an integer number (869292450).

Almost surely, 2^27389379456 is an apocalyptic number.

It is an amenable number.

27389379456 is an abundant number, since it is smaller than the sum of its proper divisors (56062695744).

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

27389379456 is a wasteful number, since it uses less digits than its factorization.

27389379456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398596 (or 1398581 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 63.

The spelling of 27389379456 in words is "twenty-seven billion, three hundred eighty-nine million, three hundred seventy-nine thousand, four hundred fifty-six".