27081651393 has 12 divisors (see below), whose sum is σ = 39120179280. Its totient is φ = 18053401176.

The previous prime is 27081651391. The next prime is 27081651413. The reversal of 27081651393 is 39315618072.

It is not a de Polignac number, because 27081651393 - 2¹ = 27081651391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27081651391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101430 + ... + 253872.

It is an arithmetic number, because the mean of its divisors is an integer number (3260014940).

Almost surely, 2^27081651393 is an apocalyptic number.

It is an amenable number.

27081651393 is a deficient number, since it is larger than the sum of its proper divisors (12038527887).

27081651393 is a wasteful number, since it uses less digits than its factorization.

27081651393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172188 (or 172185 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 27081651393 in words is "twenty-seven billion, eighty-one million, six hundred fifty-one thousand, three hundred ninety-three".