19396985088 has 144 divisors (see below), whose sum is σ = 58522009280. Its totient is φ = 5654126592.

The previous prime is 19396985087. The next prime is 19396985089. The reversal of 19396985088 is 88058969391.

It is an interprime number because it is at equal distance from previous prime (19396985087) and next prime (19396985089).

It is not an unprimeable number, because it can be changed into a prime (19396985087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138570 + ... + 240822.

Almost surely, 2^19396985088 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 19396985088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29261004640).

19396985088 is an abundant number, since it is smaller than the sum of its proper divisors (39125024192).

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

19396985088 is a wasteful number, since it uses less digits than its factorization.

19396985088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102304 (or 102290 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 66.

The spelling of 19396985088 in words is "nineteen billion, three hundred ninety-six million, nine hundred eighty-five thousand, eighty-eight".