27145361011 has 2 divisors, whose sum is σ = 27145361012. Its totient is φ = 27145361010.

The previous prime is 27145360987. The next prime is 27145361029. The reversal of 27145361011 is 11016354172.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27145361011 is a prime.

It is not a weakly prime, because it can be changed into another prime (27145361071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13572680505 + 13572680506.

It is an arithmetic number, because the mean of its divisors is an integer number (13572680506).

Almost surely, 2^27145361011 is an apocalyptic number.

27145361011 is a deficient number, since it is larger than the sum of its proper divisors (1).

27145361011 is an equidigital number, since it uses as much as digits as its factorization.

27145361011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 27145361011 in words is "twenty-seven billion, one hundred forty-five million, three hundred sixty-one thousand, eleven".