19835930854 has 32 divisors (see below), whose sum is σ = 32192795520. Its totient is φ = 9130733568.

The previous prime is 19835930819. The next prime is 19835930857. The reversal of 19835930854 is 45803953891.

It is a junction number, because it is equal to n+sod(n) for n = 19835930795 and 19835930804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19835930857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5062104 + ... + 5066020.

It is an arithmetic number, because the mean of its divisors is an integer number (1006024860).

Almost surely, 2^19835930854 is an apocalyptic number.

19835930854 is a deficient number, since it is larger than the sum of its proper divisors (12356864666).

19835930854 is a wasteful number, since it uses less digits than its factorization.

19835930854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7152.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 19835930854 in words is "nineteen billion, eight hundred thirty-five million, nine hundred thirty thousand, eight hundred fifty-four".