27849616142 has 4 divisors (see below), whose sum is σ = 41774424216. Its totient is φ = 13924808070.

The previous prime is 27849616117. The next prime is 27849616153. The reversal of 27849616142 is 24161694872.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×27849616142² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6962404034 + ... + 6962404037.

It is an arithmetic number, because the mean of its divisors is an integer number (10443606054).

Almost surely, 2^27849616142 is an apocalyptic number.

27849616142 is a deficient number, since it is larger than the sum of its proper divisors (13924808074).

27849616142 is a wasteful number, since it uses less digits than its factorization.

27849616142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13924808073.

The product of its digits is 1161216, while the sum is 50.

The spelling of 27849616142 in words is "twenty-seven billion, eight hundred forty-nine million, six hundred sixteen thousand, one hundred forty-two".