27587851139 has 2 divisors, whose sum is σ = 27587851140. Its totient is φ = 27587851138.

The previous prime is 27587851117. The next prime is 27587851153. The reversal of 27587851139 is 93115878572.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27587851139 is a prime.

It is a super-2 number, since 2×27587851139² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27587851199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13793925569 + 13793925570.

It is an arithmetic number, because the mean of its divisors is an integer number (13793925570).

Almost surely, 2^27587851139 is an apocalyptic number.

27587851139 is a deficient number, since it is larger than the sum of its proper divisors (1).

27587851139 is an equidigital number, since it uses as much as digits as its factorization.

27587851139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4233600, while the sum is 56.

The spelling of 27587851139 in words is "twenty-seven billion, five hundred eighty-seven million, eight hundred fifty-one thousand, one hundred thirty-nine".