9768149128 has 32 divisors (see below), whose sum is σ = 20117476800. Its totient is φ = 4425841728.

The previous prime is 9768149107. The next prime is 9768149129. The reversal of 9768149128 is 8219418679.

It is a happy number.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (9768149129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1393551 + ... + 1400542.

It is an arithmetic number, because the mean of its divisors is an integer number (628671150).

Almost surely, 2^9768149128 is an apocalyptic number.

It is an amenable number.

9768149128 is an abundant number, since it is smaller than the sum of its proper divisors (10349327672).

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

9768149128 is a wasteful number, since it uses less digits than its factorization.

9768149128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2794141 (or 2794137 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 55.

The square root of 9768149128 is about 98833.9472448612. The cubic root of 9768149128 is about 2137.6540752701.

The spelling of 9768149128 in words is "nine billion, seven hundred sixty-eight million, one hundred forty-nine thousand, one hundred twenty-eight".