19120000408 has 32 divisors (see below), whose sum is σ = 36163623600. Its totient is φ = 9476673408.

The previous prime is 19120000391. The next prime is 19120000421. The reversal of 19120000408 is 80400002191.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488410 + ... + 526102.

Almost surely, 2^19120000408 is an apocalyptic number.

It is an amenable number.

19120000408 is a deficient number, since it is larger than the sum of its proper divisors (17043623192).

19120000408 is a wasteful number, since it uses less digits than its factorization.

19120000408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38251 (or 38247 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 19120000408 its reverse (80400002191), we get a palindrome (99520002599).

The spelling of 19120000408 in words is "nineteen billion, one hundred twenty million, four hundred eight", and thus it is an aban number.