19091909282 has 8 divisors (see below), whose sum is σ = 28644578796. Its totient is φ = 9543716352.

The previous prime is 19091909281. The next prime is 19091909303. The reversal of 19091909282 is 28290919091.

It can be written as a sum of positive squares in 2 ways, for example, as 17205831241 + 1886078041 = 131171^2 + 43429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 19091909282.

It is not an unprimeable number, because it can be changed into a prime (19091909281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108463 + ... + 1125554.

Almost surely, 2^19091909282 is an apocalyptic number.

19091909282 is a deficient number, since it is larger than the sum of its proper divisors (9552669514).

19091909282 is a wasteful number, since it uses less digits than its factorization.

19091909282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238292.

The product of its (nonzero) digits is 209952, while the sum is 50.

It can be divided in two parts, 1909 and 1909282, that added together give a palindrome (1911191).

The spelling of 19091909282 in words is "nineteen billion, ninety-one million, nine hundred nine thousand, two hundred eighty-two".