19340467813 has 2 divisors, whose sum is σ = 19340467814. Its totient is φ = 19340467812.

The previous prime is 19340467799. The next prime is 19340467837. The reversal of 19340467813 is 31876404391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18522393409 + 818074404 = 136097^2 + 28602^2 .

It is a cyclic number.

It is not a de Polignac number, because 19340467813 - 2²⁹ = 18803596901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19340465813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9670233906 + 9670233907.

It is an arithmetic number, because the mean of its divisors is an integer number (9670233907).

Almost surely, 2^19340467813 is an apocalyptic number.

It is an amenable number.

19340467813 is a deficient number, since it is larger than the sum of its proper divisors (1).

19340467813 is an equidigital number, since it uses as much as digits as its factorization.

19340467813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 19340467813 in words is "nineteen billion, three hundred forty million, four hundred sixty-seven thousand, eight hundred thirteen".