19909000963 has 2 divisors, whose sum is σ = 19909000964. Its totient is φ = 19909000962.

The previous prime is 19909000829. The next prime is 19909000981. The reversal of 19909000963 is 36900090991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19909000963 - 2²⁵ = 19875446531 is a prime.

It is not a weakly prime, because it can be changed into another prime (19909000763) 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, 9954500481 + 9954500482.

It is an arithmetic number, because the mean of its divisors is an integer number (9954500482).

Almost surely, 2^19909000963 is an apocalyptic number.

19909000963 is a deficient number, since it is larger than the sum of its proper divisors (1).

19909000963 is an equidigital number, since it uses as much as digits as its factorization.

19909000963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 118098, while the sum is 46.

The spelling of 19909000963 in words is "nineteen billion, nine hundred nine million, nine hundred sixty-three", and thus it is an aban number.