19089809484 has 24 divisors (see below), whose sum is σ = 44640369648. Its totient is φ = 6349344000.

The previous prime is 19089809483. The next prime is 19089809539. The reversal of 19089809484 is 48490898091.

It is a super-2 number, since 2×19089809484² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19089809483) 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, 1735017 + ... + 1745984.

It is an arithmetic number, because the mean of its divisors is an integer number (1860015402).

Almost surely, 2^19089809484 is an apocalyptic number.

It is an amenable number.

19089809484 is an abundant number, since it is smaller than the sum of its proper divisors (25550560164).

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

19089809484 is a wasteful number, since it uses less digits than its factorization.

19089809484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481465 (or 3481463 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 60.

The spelling of 19089809484 in words is "nineteen billion, eighty-nine million, eight hundred nine thousand, four hundred eighty-four".