27394712081 has 8 divisors (see below), whose sum is σ = 29897934528. Its totient is φ = 24893622000.

The previous prime is 27394712071. The next prime is 27394712083. The reversal of 27394712081 is 18021749372.

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-27394712081 is a prime.

It is a super-2 number, since 2×27394712081² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27394712083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506165 + ... + 557666.

It is an arithmetic number, because the mean of its divisors is an integer number (3737241816).

Almost surely, 2^27394712081 is an apocalyptic number.

It is an amenable number.

27394712081 is a deficient number, since it is larger than the sum of its proper divisors (2503222447).

27394712081 is a wasteful number, since it uses less digits than its factorization.

27394712081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066183.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 27394712081 in words is "twenty-seven billion, three hundred ninety-four million, seven hundred twelve thousand, eighty-one".