19835386807 has 2 divisors, whose sum is σ = 19835386808. Its totient is φ = 19835386806.

The previous prime is 19835386801. The next prime is 19835386891. The reversal of 19835386807 is 70868353891.

It is a weak prime.

It is an emirp because it is prime and its reverse (70868353891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19835386807 - 2³ = 19835386799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19835386801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9917693403 + 9917693404.

It is an arithmetic number, because the mean of its divisors is an integer number (9917693404).

Almost surely, 2^19835386807 is an apocalyptic number.

19835386807 is a deficient number, since it is larger than the sum of its proper divisors (1).

19835386807 is an equidigital number, since it uses as much as digits as its factorization.

19835386807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 19835386807 in words is "nineteen billion, eight hundred thirty-five million, three hundred eighty-six thousand, eight hundred seven".