112785209591 has 2 divisors, whose sum is σ = 112785209592. Its totient is φ = 112785209590.

The previous prime is 112785209561. The next prime is 112785209653. The reversal of 112785209591 is 195902587211.

It is a weak prime.

It is an emirp because it is prime and its reverse (195902587211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112785209591 - 2⁶ = 112785209527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112785209561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56392604795 + 56392604796.

It is an arithmetic number, because the mean of its divisors is an integer number (56392604796).

Almost surely, 2^112785209591 is an apocalyptic number.

112785209591 is a deficient number, since it is larger than the sum of its proper divisors (1).

112785209591 is an equidigital number, since it uses as much as digits as its factorization.

112785209591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 50.

The spelling of 112785209591 in words is "one hundred twelve billion, seven hundred eighty-five million, two hundred nine thousand, five hundred ninety-one".