19835345232 has 80 divisors (see below), whose sum is σ = 57129468480. Its totient is φ = 6589173888.

The previous prime is 19835345191. The next prime is 19835345237. The reversal of 19835345232 is 23254353891.

19835345232 is a `hidden beast` number, since 1 + 9 + 83 + 534 + 5 + 2 + 32 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19835345237) 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, 48223 + ... + 204929.

It is an arithmetic number, because the mean of its divisors is an integer number (714118356).

Almost surely, 2^19835345232 is an apocalyptic number.

19835345232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19835345232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28564734240).

19835345232 is an abundant number, since it is smaller than the sum of its proper divisors (37294123248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19835345232 is a wasteful number, since it uses less digits than its factorization.

19835345232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157017 (or 157005 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The spelling of 19835345232 in words is "nineteen billion, eight hundred thirty-five million, three hundred forty-five thousand, two hundred thirty-two".