409788949903 has 2 divisors, whose sum is σ = 409788949904. Its totient is φ = 409788949902.

The previous prime is 409788949879. The next prime is 409788949919. The reversal of 409788949903 is 309949887904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 409788949903 - 2⁹ = 409788949391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409788949943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204894474951 + 204894474952.

It is an arithmetic number, because the mean of its divisors is an integer number (204894474952).

Almost surely, 2^409788949903 is an apocalyptic number.

409788949903 is a deficient number, since it is larger than the sum of its proper divisors (1).

409788949903 is an equidigital number, since it uses as much as digits as its factorization.

409788949903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141087744, while the sum is 70.

The spelling of 409788949903 in words is "four hundred nine billion, seven hundred eighty-eight million, nine hundred forty-nine thousand, nine hundred three".