9749123912 has 48 divisors (see below), whose sum is σ = 20105131200. Its totient is φ = 4428626400.

The previous prime is 9749123911. The next prime is 9749123921. The reversal of 9749123912 is 2193219479.

It is not an unprimeable number, because it can be changed into a prime (9749123911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2978837 + ... + 2982107.

It is an arithmetic number, because the mean of its divisors is an integer number (418856900).

Almost surely, 2^9749123912 is an apocalyptic number.

It is an amenable number.

9749123912 is an abundant number, since it is smaller than the sum of its proper divisors (10356007288).

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

9749123912 is a wasteful number, since it uses less digits than its factorization.

9749123912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378 (or 6363 counting only the distinct ones).

The product of its digits is 244944, while the sum is 47.

The square root of 9749123912 is about 98737.6519469650. The cubic root of 9749123912 is about 2136.2653521802.

The spelling of 9749123912 in words is "nine billion, seven hundred forty-nine million, one hundred twenty-three thousand, nine hundred twelve".