19206963049 has 2 divisors, whose sum is σ = 19206963050. Its totient is φ = 19206963048.

The previous prime is 19206963031. The next prime is 19206963077. The reversal of 19206963049 is 94036960291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14272603024 + 4934360025 = 119468^2 + 70245^2 .

It is a cyclic number.

It is not a de Polignac number, because 19206963049 - 2¹⁷ = 19206831977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19206962993 and 19206963011.

It is not a weakly prime, because it can be changed into another prime (19206963089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9603481524 + 9603481525.

It is an arithmetic number, because the mean of its divisors is an integer number (9603481525).

Almost surely, 2^19206963049 is an apocalyptic number.

It is an amenable number.

19206963049 is a deficient number, since it is larger than the sum of its proper divisors (1).

19206963049 is an equidigital number, since it uses as much as digits as its factorization.

19206963049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 49.

The spelling of 19206963049 in words is "nineteen billion, two hundred six million, nine hundred sixty-three thousand, forty-nine".