10209004991 has 2 divisors, whose sum is σ = 10209004992. Its totient is φ = 10209004990.

The previous prime is 10209004987. The next prime is 10209005017. The reversal of 10209004991 is 19940090201.

10209004991 is digitally balanced in base 3, 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 10209004991 - 2² = 10209004987 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10209004901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5104502495 + 5104502496.

It is an arithmetic number, because the mean of its divisors is an integer number (5104502496).

Almost surely, 2^10209004991 is an apocalyptic number.

10209004991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10209004991 is an equidigital number, since it uses as much as digits as its factorization.

10209004991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 10209004991 in words is "ten billion, two hundred nine million, four thousand, nine hundred ninety-one".