27879342111 has 12 divisors (see below), whose sum is σ = 40272916320. Its totient is φ = 18584956320.

The previous prime is 27879342109. The next prime is 27879342131. The reversal of 27879342111 is 11124397872.

It is not a de Polignac number, because 27879342111 - 2¹ = 27879342109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27879342131) 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 11 ways as a sum of consecutive naturals, for example, 44035 + ... + 240203.

It is an arithmetic number, because the mean of its divisors is an integer number (3356076360).

Almost surely, 2^27879342111 is an apocalyptic number.

27879342111 is a deficient number, since it is larger than the sum of its proper divisors (12393574209).

27879342111 is a wasteful number, since it uses less digits than its factorization.

27879342111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211966 (or 211963 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The spelling of 27879342111 in words is "twenty-seven billion, eight hundred seventy-nine million, three hundred forty-two thousand, one hundred eleven".