19203143380 has 24 divisors (see below), whose sum is σ = 41087482632. Its totient is φ = 7536327552.

The previous prime is 19203143341. The next prime is 19203143381. The reversal of 19203143380 is 8334130291.

It can be written as a sum of positive squares in 4 ways, for example, as 6677504656 + 12525638724 = 81716^2 + 111918^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19203143381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9057027 + ... + 9059146.

It is an arithmetic number, because the mean of its divisors is an integer number (1711978443).

Almost surely, 2^19203143380 is an apocalyptic number.

19203143380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19203143380 is an abundant number, since it is smaller than the sum of its proper divisors (21884339252).

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

19203143380 is a wasteful number, since it uses less digits than its factorization.

19203143380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18116235 (or 18116233 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 19203143380 in words is "nineteen billion, two hundred three million, one hundred forty-three thousand, three hundred eighty".