19282009091 has 2 divisors, whose sum is σ = 19282009092. Its totient is φ = 19282009090.

The previous prime is 19282009073. The next prime is 19282009099. The reversal of 19282009091 is 19090028291.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19282009091 is a prime.

It is not a weakly prime, because it can be changed into another prime (19282009099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9641004545 + 9641004546.

It is an arithmetic number, because the mean of its divisors is an integer number (9641004546).

Almost surely, 2^19282009091 is an apocalyptic number.

19282009091 is a deficient number, since it is larger than the sum of its proper divisors (1).

19282009091 is an equidigital number, since it uses as much as digits as its factorization.

19282009091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 41.

The spelling of 19282009091 in words is "nineteen billion, two hundred eighty-two million, nine thousand, ninety-one".