19008689469 has 32 divisors (see below), whose sum is σ = 31681511424. Its totient is φ = 9848815680.

The previous prime is 19008689393. The next prime is 19008689533. The reversal of 19008689469 is 96498680091.

It is not a de Polignac number, because 19008689469 - 2²⁰ = 19007640893 is a prime.

It is a super-2 number, since 2×19008689469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19008689569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18954 + ... + 195899.

It is an arithmetic number, because the mean of its divisors is an integer number (990047232).

Almost surely, 2^19008689469 is an apocalyptic number.

It is an amenable number.

19008689469 is a deficient number, since it is larger than the sum of its proper divisors (12672821955).

19008689469 is a wasteful number, since it uses less digits than its factorization.

19008689469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215257.

The product of its (nonzero) digits is 6718464, while the sum is 60.

The spelling of 19008689469 in words is "nineteen billion, eight million, six hundred eighty-nine thousand, four hundred sixty-nine".