19604338097 has 2 divisors, whose sum is σ = 19604338098. Its totient is φ = 19604338096.

The previous prime is 19604338081. The next prime is 19604338139. The reversal of 19604338097 is 79083340691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16941365281 + 2662972816 = 130159^2 + 51604^2 .

It is a cyclic number.

It is not a de Polignac number, because 19604338097 - 2⁴ = 19604338081 is a prime.

It is not a weakly prime, because it can be changed into another prime (19604338007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9802169048 + 9802169049.

It is an arithmetic number, because the mean of its divisors is an integer number (9802169049).

Almost surely, 2^19604338097 is an apocalyptic number.

It is an amenable number.

19604338097 is a deficient number, since it is larger than the sum of its proper divisors (1).

19604338097 is an equidigital number, since it uses as much as digits as its factorization.

19604338097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 19604338097 in words is "nineteen billion, six hundred four million, three hundred thirty-eight thousand, ninety-seven".