112561561787 has 2 divisors, whose sum is σ = 112561561788. Its totient is φ = 112561561786.

The previous prime is 112561561759. The next prime is 112561561807. The reversal of 112561561787 is 787165165211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 112561561787 - 2¹⁰ = 112561560763 is a prime.

It is not a weakly prime, because it can be changed into another prime (112561561757) 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, 56280780893 + 56280780894.

It is an arithmetic number, because the mean of its divisors is an integer number (56280780894).

Almost surely, 2^112561561787 is an apocalyptic number.

112561561787 is a deficient number, since it is larger than the sum of its proper divisors (1).

112561561787 is an equidigital number, since it uses as much as digits as its factorization.

112561561787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 50.

The spelling of 112561561787 in words is "one hundred twelve billion, five hundred sixty-one million, five hundred sixty-one thousand, seven hundred eighty-seven".