27147851065650 has 576 divisors, whose sum is σ = 82602239975424. Its totient is φ = 5875752960000.

The previous prime is 27147851065637. The next prime is 27147851065651. The reversal of 27147851065650 is 5656015874172.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27147851065651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 2305152562 + ... + 2305164338.

It is an arithmetic number, because the mean of its divisors is an integer number (143406666624).

Almost surely, 2^{27147851065650} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27147851065650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41301119987712).

27147851065650 is an abundant number, since it is smaller than the sum of its proper divisors (55454388909774).

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

27147851065650 is a wasteful number, since it uses less digits than its factorization.

27147851065650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12055 (or 12043 counting only the distinct ones).

The product of its (nonzero) digits is 14112000, while the sum is 57.

The spelling of 27147851065650 in words is "twenty-seven trillion, one hundred forty-seven billion, eight hundred fifty-one million, sixty-five thousand, six hundred fifty".