9746128784 has 20 divisors (see below), whose sum is σ = 21580713984. Its totient is φ = 4176912288.

The previous prime is 9746128759. The next prime is 9746128789. The reversal of 9746128784 is 4878216479.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (9746128789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43509392 + ... + 43509615.

Almost surely, 2^9746128784 is an apocalyptic number.

It is an amenable number.

9746128784 is an abundant number, since it is smaller than the sum of its proper divisors (11834585200).

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

9746128784 is a wasteful number, since it uses less digits than its factorization.

9746128784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87019022 (or 87019016 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 56.

The square root of 9746128784 is about 98722.4836802640. The cubic root of 9746128784 is about 2136.0465618021.

The spelling of 9746128784 in words is "nine billion, seven hundred forty-six million, one hundred twenty-eight thousand, seven hundred eighty-four".