19408920307 has 8 divisors (see below), whose sum is σ = 22350949632. Its totient is φ = 16509222600.

The previous prime is 19408920269. The next prime is 19408920319. The reversal of 19408920307 is 70302980491.

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

It is not a de Polignac number, because 19408920307 - 2¹¹ = 19408918259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19408920367) 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 7 ways as a sum of consecutive naturals, for example, 10581919 + ... + 10583752.

It is an arithmetic number, because the mean of its divisors is an integer number (2793868704).

Almost surely, 2^19408920307 is an apocalyptic number.

19408920307 is a deficient number, since it is larger than the sum of its proper divisors (2942029325).

19408920307 is a wasteful number, since it uses less digits than its factorization.

19408920307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21165809.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 19408920307 in words is "nineteen billion, four hundred eight million, nine hundred twenty thousand, three hundred seven".