9974739312 has 120 divisors (see below), whose sum is σ = 29493023040. Its totient is φ = 3141895680.

The previous prime is 9974739311. The next prime is 9974739353. The reversal of 9974739312 is 2139374799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9974739311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170862 + ... + 221682.

It is an arithmetic number, because the mean of its divisors is an integer number (245775192).

Almost surely, 2^9974739312 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 9974739312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14746511520).

9974739312 is an abundant number, since it is smaller than the sum of its proper divisors (19518283728).

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

9974739312 is a wasteful number, since it uses less digits than its factorization.

9974739312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50911 (or 50902 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The square root of 9974739312 is about 99873.6166963027. The cubic root of 9974739312 is about 2152.6190769674.

The spelling of 9974739312 in words is "nine billion, nine hundred seventy-four million, seven hundred thirty-nine thousand, three hundred twelve".