9694128888 has 96 divisors (see below), whose sum is σ = 26953290000. Its totient is φ = 3145766400.

The previous prime is 9694128887. The next prime is 9694128889. The reversal of 9694128888 is 8888214969.

9694128888 is a `hidden beast` number, since 9 + 69 + 412 + 88 + 88 = 666.

It is an interprime number because it is at equal distance from previous prime (9694128887) and next prime (9694128889).

It is a super-2 number, since 2×9694128888² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9694128883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1469758 + ... + 1476338.

Almost surely, 2^9694128888 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 9694128888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13476645000).

9694128888 is an abundant number, since it is smaller than the sum of its proper divisors (17259161112).

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

9694128888 is a wasteful number, since it uses less digits than its factorization.

9694128888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7133 (or 7126 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 63.

The square root of 9694128888 is about 98458.7674511519. The cubic root of 9694128888 is about 2132.2408685383.

The spelling of 9694128888 in words is "nine billion, six hundred ninety-four million, one hundred twenty-eight thousand, eight hundred eighty-eight".