19130239049 has 2 divisors, whose sum is σ = 19130239050. Its totient is φ = 19130239048.

The previous prime is 19130239031. The next prime is 19130239057. The reversal of 19130239049 is 94093203191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11946490000 + 7183749049 = 109300^2 + 84757^2 .

It is a cyclic number.

It is not a de Polignac number, because 19130239049 - 2¹² = 19130234953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19130238997 and 19130239015.

It is not a weakly prime, because it can be changed into another prime (19130239069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9565119524 + 9565119525.

It is an arithmetic number, because the mean of its divisors is an integer number (9565119525).

Almost surely, 2^19130239049 is an apocalyptic number.

It is an amenable number.

19130239049 is a deficient number, since it is larger than the sum of its proper divisors (1).

19130239049 is an equidigital number, since it uses as much as digits as its factorization.

19130239049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 41.

The spelling of 19130239049 in words is "nineteen billion, one hundred thirty million, two hundred thirty-nine thousand, forty-nine".