19120000409 has 8 divisors (see below), whose sum is σ = 20135892480. Its totient is φ = 18105066000.

The previous prime is 19120000391. The next prime is 19120000421. The reversal of 19120000409 is 90400002191.

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

It is a cyclic number.

It is not a de Polignac number, because 19120000409 - 2²⁰ = 19118951833 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 (19120000489) 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, 198242 + ... + 278459.

It is an arithmetic number, because the mean of its divisors is an integer number (2516986560).

Almost surely, 2^19120000409 is an apocalyptic number.

19120000409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

19120000409 is a deficient number, since it is larger than the sum of its proper divisors (1015892071).

19120000409 is a wasteful number, since it uses less digits than its factorization.

19120000409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478831.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 19120000409 in words is "nineteen billion, one hundred twenty million, four hundred nine", and thus it is an aban number.