27691162151 has 2 divisors, whose sum is σ = 27691162152. Its totient is φ = 27691162150.

The previous prime is 27691162139. The next prime is 27691162297. The reversal of 27691162151 is 15126119672.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27691162151 - 2³⁰ = 26617420327 is a prime.

It is a super-2 number, since 2×27691162151² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27691162099 and 27691162108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27691168151) by changing a digit.

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 as a sum of consecutive naturals, namely, 13845581075 + 13845581076.

It is an arithmetic number, because the mean of its divisors is an integer number (13845581076).

Almost surely, 2^27691162151 is an apocalyptic number.

27691162151 is a deficient number, since it is larger than the sum of its proper divisors (1).

27691162151 is an equidigital number, since it uses as much as digits as its factorization.

27691162151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 41.

The spelling of 27691162151 in words is "twenty-seven billion, six hundred ninety-one million, one hundred sixty-two thousand, one hundred fifty-one".