27387800939521 has 8 divisors (see below), whose sum is σ = 30907863129600. Its totient is φ = 24039449100240.

The previous prime is 27387800939501. The next prime is 27387800939533. The reversal of 27387800939521 is 12593900878372.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27387800939521 - 2⁷ = 27387800939393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27387800939501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42927587361 + ... + 42927587998.

It is an arithmetic number, because the mean of its divisors is an integer number (3863482891200).

Almost surely, 2^{27387800939521} is an apocalyptic number.

It is an amenable number.

27387800939521 is a deficient number, since it is larger than the sum of its proper divisors (3520062190079).

27387800939521 is a wasteful number, since it uses less digits than its factorization.

27387800939521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85855175399.

The product of its (nonzero) digits is 45722880, while the sum is 64.

The spelling of 27387800939521 in words is "twenty-seven trillion, three hundred eighty-seven billion, eight hundred million, nine hundred thirty-nine thousand, five hundred twenty-one".