19434435088 has 40 divisors (see below), whose sum is σ = 39978012672. Its totient is φ = 9120649728.

The previous prime is 19434435047. The next prime is 19434435103. The reversal of 19434435088 is 88053443491.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2481 + ... + 197167.

Almost surely, 2^19434435088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19434435088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19989006336).

19434435088 is an abundant number, since it is smaller than the sum of its proper divisors (20543577584).

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

19434435088 is a wasteful number, since it uses less digits than its factorization.

19434435088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195079 (or 195073 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 19434435088 in words is "nineteen billion, four hundred thirty-four million, four hundred thirty-five thousand, eighty-eight".