9860434128 has 40 divisors (see below), whose sum is σ = 28303099200. Its totient is φ = 3286811232.

The previous prime is 9860434099. The next prime is 9860434139. The reversal of 9860434128 is 8214340689.

It is a happy number.

9860434128 is a `hidden beast` number, since 9 + 8 + 604 + 34 + 1 + 2 + 8 = 666.

It is a super-2 number, since 2×9860434128² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11412108 + ... + 11412971.

It is an arithmetic number, because the mean of its divisors is an integer number (707577480).

Almost surely, 2^9860434128 is an apocalyptic number.

It is an amenable number.

9860434128 is an abundant number, since it is smaller than the sum of its proper divisors (18442665072).

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

9860434128 is a wasteful number, since it uses less digits than its factorization.

9860434128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22825096 (or 22825084 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 9860434128 is about 99299.7186702963. The cubic root of 9860434128 is about 2144.3648449520.

The spelling of 9860434128 in words is "nine billion, eight hundred sixty million, four hundred thirty-four thousand, one hundred twenty-eight".