19433870832 has 20 divisors (see below), whose sum is σ = 50204166440. Its totient is φ = 6477956928.

The previous prime is 19433870831. The next prime is 19433870903. The reversal of 19433870832 is 23807833491.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 404872309 = 19433870832 / (1 + 9 + 4 + 3 + 3 + 8 + 7 + 0 + 8 + 3 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19433870831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202436107 + ... + 202436202.

It is an arithmetic number, because the mean of its divisors is an integer number (2510208322).

Almost surely, 2^19433870832 is an apocalyptic number.

19433870832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19433870832 is an abundant number, since it is smaller than the sum of its proper divisors (30770295608).

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

19433870832 is a wasteful number, since it uses less digits than its factorization.

19433870832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404872320 (or 404872314 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 19433870832 in words is "nineteen billion, four hundred thirty-three million, eight hundred seventy thousand, eight hundred thirty-two".