19203471380 has 96 divisors (see below), whose sum is σ = 44031980160. Its totient is φ = 7009804800.

The previous prime is 19203471379. The next prime is 19203471383. The reversal of 19203471380 is 8317430291.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19203471383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1413299 + ... + 1426821.

It is an arithmetic number, because the mean of its divisors is an integer number (458666460).

Almost surely, 2^19203471380 is an apocalyptic number.

19203471380 is a gapful number since it is divisible by the number (10) 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 19203471380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22015990080).

19203471380 is an abundant number, since it is smaller than the sum of its proper divisors (24828508780).

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

19203471380 is a wasteful number, since it uses less digits than its factorization.

19203471380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13689 (or 13687 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 19203471380 in words is "nineteen billion, two hundred three million, four hundred seventy-one thousand, three hundred eighty".