19346480917 has 2 divisors, whose sum is σ = 19346480918. Its totient is φ = 19346480916.

The previous prime is 19346480911. The next prime is 19346480953. The reversal of 19346480917 is 71908464391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11363773201 + 7982707716 = 106601^2 + 89346^2 .

It is an emirp because it is prime and its reverse (71908464391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19346480917 - 2¹⁹ = 19345956629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19346480911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9673240458 + 9673240459.

It is an arithmetic number, because the mean of its divisors is an integer number (9673240459).

Almost surely, 2^19346480917 is an apocalyptic number.

It is an amenable number.

19346480917 is a deficient number, since it is larger than the sum of its proper divisors (1).

19346480917 is an equidigital number, since it uses as much as digits as its factorization.

19346480917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 19346480917 in words is "nineteen billion, three hundred forty-six million, four hundred eighty thousand, nine hundred seventeen".