9949125648 has 160 divisors (see below), whose sum is σ = 33730698240. Its totient is φ = 2448161280.

The previous prime is 9949125551. The next prime is 9949125649. The reversal of 9949125648 is 8465219499.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (9949125649) 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 31 ways as a sum of consecutive naturals, for example, 615 + ... + 141062.

It is an arithmetic number, because the mean of its divisors is an integer number (210816864).

Almost surely, 2^9949125648 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 9949125648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16865349120).

9949125648 is an abundant number, since it is smaller than the sum of its proper divisors (23781572592).

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

9949125648 is a wasteful number, since it uses less digits than its factorization.

9949125648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141725 (or 141719 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 57.

The square root of 9949125648 is about 99745.3038894564. The cubic root of 9949125648 is about 2150.7749611604.

The spelling of 9949125648 in words is "nine billion, nine hundred forty-nine million, one hundred twenty-five thousand, six hundred forty-eight".