27481717393728 has 112 divisors (see below), whose sum is σ = 78311436772800. Its totient is φ = 8455247990784.

The previous prime is 27481717393709. The next prime is 27481717393751. The reversal of 27481717393728 is 82739371718472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31789348 + ... + 32642396.

It is an arithmetic number, because the mean of its divisors is an integer number (699209256900).

Almost surely, 2^{27481717393728} is an apocalyptic number.

It is an amenable number.

27481717393728 is an abundant number, since it is smaller than the sum of its proper divisors (50829719379072).

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

27481717393728 is a wasteful number, since it uses less digits than its factorization.

27481717393728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865984 (or 865974 counting only the distinct ones).

The product of its digits is 199148544, while the sum is 69.

The spelling of 27481717393728 in words is "twenty-seven trillion, four hundred eighty-one billion, seven hundred seventeen million, three hundred ninety-three thousand, seven hundred twenty-eight".