27143158474481 has 8 divisors (see below), whose sum is σ = 31022533538880. Its totient is φ = 23264228659248.

The previous prime is 27143158474469. The next prime is 27143158474547. The reversal of 27143158474481 is 18447485134172.

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 a de Polignac number, because none of the positive numbers 2^k-27143158474481 is a prime.

It is a super-2 number, since 2×27143158474481² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27143158474481.

It is not an unprimeable number, because it can be changed into a prime (27143158470481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111181646 + ... + 111425511.

It is an arithmetic number, because the mean of its divisors is an integer number (3877816692360).

Almost surely, 2^{27143158474481} is an apocalyptic number.

It is an amenable number.

27143158474481 is a deficient number, since it is larger than the sum of its proper divisors (3879375064399).

27143158474481 is a wasteful number, since it uses less digits than its factorization.

27143158474481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222624583.

The product of its digits is 24084480, while the sum is 59.

The spelling of 27143158474481 in words is "twenty-seven trillion, one hundred forty-three billion, one hundred fifty-eight million, four hundred seventy-four thousand, four hundred eighty-one".