9909425509783 has 2 divisors, whose sum is σ = 9909425509784. Its totient is φ = 9909425509782.

The previous prime is 9909425509769. The next prime is 9909425509799. The reversal of 9909425509783 is 3879055249099.

9909425509783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9909425509783 - 2⁹ = 9909425509271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9909425509723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4954712754891 + 4954712754892.

It is an arithmetic number, because the mean of its divisors is an integer number (4954712754892).

Almost surely, 2^{9909425509783} is an apocalyptic number.

9909425509783 is a deficient number, since it is larger than the sum of its proper divisors (1).

9909425509783 is an equidigital number, since it uses as much as digits as its factorization.

9909425509783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 220449600, while the sum is 70.

The spelling of 9909425509783 in words is "nine trillion, nine hundred nine billion, four hundred twenty-five million, five hundred nine thousand, seven hundred eighty-three".