1205747513027 has 2 divisors, whose sum is σ = 1205747513028. Its totient is φ = 1205747513026.

The previous prime is 1205747512973. The next prime is 1205747513063. The reversal of 1205747513027 is 7203157475021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1205747513027 - 2¹⁰ = 1205747512003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1205747513527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602873756513 + 602873756514.

It is an arithmetic number, because the mean of its divisors is an integer number (602873756514).

Almost surely, 2^{1205747513027} is an apocalyptic number.

1205747513027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205747513027 is an equidigital number, since it uses as much as digits as its factorization.

1205747513027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 411600, while the sum is 44.

The spelling of 1205747513027 in words is "one trillion, two hundred five billion, seven hundred forty-seven million, five hundred thirteen thousand, twenty-seven".