27438671087028 has 72 divisors (see below), whose sum is σ = 73454681821248. Its totient is φ = 8617986229248.

The previous prime is 27438671086993. The next prime is 27438671087029. The reversal of 27438671087028 is 82078017683472.

It is a happy number.

27438671087028 is a `hidden beast` number, since 2 + 7 + 438 + 6 + 7 + 108 + 70 + 28 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27438671087029) 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, 247246701 + ... + 247357652.

It is an arithmetic number, because the mean of its divisors is an integer number (1020203914184).

Almost surely, 2^{27438671087028} is an apocalyptic number.

It is an amenable number.

27438671087028 is an abundant number, since it is smaller than the sum of its proper divisors (46016010734220).

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

27438671087028 is a wasteful number, since it uses less digits than its factorization.

27438671087028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494604453 (or 494604448 counting only the distinct ones).

The product of its (nonzero) digits is 50577408, while the sum is 63.

The spelling of 27438671087028 in words is "twenty-seven trillion, four hundred thirty-eight billion, six hundred seventy-one million, eighty-seven thousand, twenty-eight".