9749133520 has 160 divisors (see below), whose sum is σ = 26335814400. Its totient is φ = 3287347200.

The previous prime is 9749133481. The next prime is 9749133523. The reversal of 9749133520 is 253319479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9749133523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16221220 + ... + 16221820.

It is an arithmetic number, because the mean of its divisors is an integer number (164598840).

Almost surely, 2^9749133520 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 9749133520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13167907200).

9749133520 is an abundant number, since it is smaller than the sum of its proper divisors (16586680880).

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

9749133520 is a wasteful number, since it uses less digits than its factorization.

9749133520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 9749133520 is about 98737.7006011382. The cubic root of 9749133520 is about 2136.2660539606.

The spelling of 9749133520 in words is "nine billion, seven hundred forty-nine million, one hundred thirty-three thousand, five hundred twenty".