27681490395 has 80 divisors (see below), whose sum is σ = 53749346112. Its totient is φ = 13548591360.

The previous prime is 27681490381. The next prime is 27681490399. The reversal of 27681490395 is 59309418672.

27681490395 is a `hidden beast` number, since 2 + 7 + 68 + 1 + 490 + 3 + 95 = 666.

It is not a de Polignac number, because 27681490395 - 2⁹ = 27681489883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27681490399) 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 79 ways as a sum of consecutive naturals, for example, 895650 + ... + 926040.

It is a 1-persistent number, because it is pandigital, but 2⋅27681490395 = 55362980790 is not.

Almost surely, 2^27681490395 is an apocalyptic number.

27681490395 is a deficient number, since it is larger than the sum of its proper divisors (26067855717).

27681490395 is a wasteful number, since it uses less digits than its factorization.

27681490395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30594 (or 30585 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 27681490395 in words is "twenty-seven billion, six hundred eighty-one million, four hundred ninety thousand, three hundred ninety-five".