19040411009 has 8 divisors (see below), whose sum is σ = 20368276488. Its totient is φ = 17735639040.

The previous prime is 19040410999. The next prime is 19040411023. The reversal of 19040411009 is 90011404091.

It can be written as a sum of positive squares in 4 ways, for example, as 518017600 + 18522393409 = 22760^2 + 136097^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19040411009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19040411059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5771672 + ... + 5774969.

It is an arithmetic number, because the mean of its divisors is an integer number (2546034561).

Almost surely, 2^19040411009 is an apocalyptic number.

It is an amenable number.

19040411009 is a deficient number, since it is larger than the sum of its proper divisors (1327865479).

19040411009 is a wasteful number, since it uses less digits than its factorization.

19040411009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11546755.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 19040411009 in words is "nineteen billion, forty million, four hundred eleven thousand, nine".