19030425409 has 2 divisors, whose sum is σ = 19030425410. Its totient is φ = 19030425408.

The previous prime is 19030425391. The next prime is 19030425437. The reversal of 19030425409 is 90452403091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14744759184 + 4285666225 = 121428^2 + 65465^2 .

It is a cyclic number.

It is not a de Polignac number, because 19030425409 - 2³³ = 10440490817 is a prime.

It is not a weakly prime, because it can be changed into another prime (19030425499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9515212704 + 9515212705.

It is an arithmetic number, because the mean of its divisors is an integer number (9515212705).

Almost surely, 2^19030425409 is an apocalyptic number.

It is an amenable number.

19030425409 is a deficient number, since it is larger than the sum of its proper divisors (1).

19030425409 is an equidigital number, since it uses as much as digits as its factorization.

19030425409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 19030425409 in words is "nineteen billion, thirty million, four hundred twenty-five thousand, four hundred nine".