27771607142 has 8 divisors (see below), whose sum is σ = 41658216600. Its totient is φ = 13885534944.

The previous prime is 27771607139. The next prime is 27771607153. The reversal of 27771607142 is 24170617772.

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

It is a junction number, because it is equal to n+sod(n) for n = 27771607093 and 27771607102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40334 + ... + 239102.

It is an arithmetic number, because the mean of its divisors is an integer number (5207277075).

Almost surely, 2^27771607142 is an apocalyptic number.

27771607142 is a deficient number, since it is larger than the sum of its proper divisors (13886609458).

27771607142 is a wasteful number, since it uses less digits than its factorization.

27771607142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268630.

The product of its (nonzero) digits is 230496, while the sum is 44.

The spelling of 27771607142 in words is "twenty-seven billion, seven hundred seventy-one million, six hundred seven thousand, one hundred forty-two".