27645634185146 has 8 divisors (see below), whose sum is σ = 41536099650324. Its totient is φ = 13800267635040.

The previous prime is 27645634185139. The next prime is 27645634185151. The reversal of 27645634185146 is 64158143654672.

It can be written as a sum of positive squares in 2 ways, for example, as 27238889989921 + 406744195225 = 5219089^2 + 637765^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11274727235 + ... + 11274729686.

Almost surely, 2^{27645634185146} is an apocalyptic number.

27645634185146 is a deficient number, since it is larger than the sum of its proper divisors (13890465465178).

27645634185146 is a wasteful number, since it uses less digits than its factorization.

27645634185146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22549457536.

The product of its digits is 116121600, while the sum is 62.

The spelling of 27645634185146 in words is "twenty-seven trillion, six hundred forty-five billion, six hundred thirty-four million, one hundred eighty-five thousand, one hundred forty-six".