9974937128 has 32 divisors (see below), whose sum is σ = 20148398760. Its totient is φ = 4602286080.

The previous prime is 9974937127. The next prime is 9974937139. The reversal of 9974937128 is 8217394799.

It can be written as a sum of positive squares in 4 ways, for example, as 6140603044 + 3834334084 = 78362^2 + 61922^2 .

It is not an unprimeable number, because it can be changed into a prime (9974937127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335276 + ... + 363812.

Almost surely, 2^9974937128 is an apocalyptic number.

It is an amenable number.

9974937128 is an abundant number, since it is smaller than the sum of its proper divisors (10173461632).

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

9974937128 is a wasteful number, since it uses less digits than its factorization.

9974937128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31917 (or 31913 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 59.

The square root of 9974937128 is about 99874.6070230066. The cubic root of 9974937128 is about 2152.6333069025.

The spelling of 9974937128 in words is "nine billion, nine hundred seventy-four million, nine hundred thirty-seven thousand, one hundred twenty-eight".