27161131519 has 2 divisors, whose sum is σ = 27161131520. Its totient is φ = 27161131518.

The previous prime is 27161131471. The next prime is 27161131553. The reversal of 27161131519 is 91513116172.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27161131519 - 2³³ = 18571196927 is a prime.

It is a super-2 number, since 2×27161131519² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27161134519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13580565759 + 13580565760.

It is an arithmetic number, because the mean of its divisors is an integer number (13580565760).

Almost surely, 2^27161131519 is an apocalyptic number.

27161131519 is a deficient number, since it is larger than the sum of its proper divisors (1).

27161131519 is an equidigital number, since it uses as much as digits as its factorization.

27161131519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 37.

The spelling of 27161131519 in words is "twenty-seven billion, one hundred sixty-one million, one hundred thirty-one thousand, five hundred nineteen".