19409470536 has 16 divisors (see below), whose sum is σ = 48523676400. Its totient is φ = 6469823504.

The previous prime is 19409470519. The next prime is 19409470541. The reversal of 19409470536 is 63507490491.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404363946 + ... + 404363993.

It is an arithmetic number, because the mean of its divisors is an integer number (3032729775).

Almost surely, 2^19409470536 is an apocalyptic number.

It is an amenable number.

19409470536 is an abundant number, since it is smaller than the sum of its proper divisors (29114205864).

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

19409470536 is a wasteful number, since it uses less digits than its factorization.

19409470536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808727948 (or 808727944 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 19409470536 in words is "nineteen billion, four hundred nine million, four hundred seventy thousand, five hundred thirty-six".