27666414139 has 16 divisors (see below), whose sum is σ = 34065492160. Its totient is φ = 21880575360.

The previous prime is 27666414109. The next prime is 27666414143. The reversal of 27666414139 is 93141466672.

It is not a de Polignac number, because 27666414139 - 2¹¹ = 27666412091 is a prime.

It is a super-2 number, since 2×27666414139² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27666414092 and 27666414101.

It is not an unprimeable number, because it can be changed into a prime (27666414109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153769 + ... + 281029.

It is an arithmetic number, because the mean of its divisors is an integer number (2129093260).

Almost surely, 2^27666414139 is an apocalyptic number.

27666414139 is a deficient number, since it is larger than the sum of its proper divisors (6399078021).

27666414139 is a wasteful number, since it uses less digits than its factorization.

27666414139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129670.

The product of its digits is 1306368, while the sum is 49.

The spelling of 27666414139 in words is "twenty-seven billion, six hundred sixty-six million, four hundred fourteen thousand, one hundred thirty-nine".